BEGIN:VCALENDAR VERSION:2.0 PRODID:icalendar-ruby CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VTIMEZONE TZID:Europe/Vienna BEGIN:DAYLIGHT DTSTART:20260329T030000 TZOFFSETFROM:+0100 TZOFFSETTO:+0200 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:CEST END:DAYLIGHT BEGIN:STANDARD DTSTART:20261025T020000 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:CET END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1792065600@ist.ac.at DTSTART:20261015T140000 DTEND:20261015T150000 DESCRIPTION:Speaker: Sylvain Gigan\nhosted by Charles Roques-Carmes\nAbstra ct: Multiple scattering of light in a disordered medium is usually seen as a nuisance to be corrected\, for instance in imaging. Yet a scattering me dium is also an extremely rich physical system: it mixes an enormous numbe r of optical modes in a fixed\, deterministic way\, and can therefore act as a very large random matrix multiplier for information encoded on the li ght field. In this talk\, I will show how this property can be harnessed t o perform computations at scale\, with applications ranging from random pr ojections for machine learning and optical reservoir computing to the acce leration of large-scale inference. Linear scattering alone\, however\, is not sufficient: non-linearity is the key ingredient of any expressive neur al computation. I will discuss several strategies to introduce non-lineari ty into scattering-based optical processors\, from the non-linearity of in tensity detection and data re-encoding\, to recurrent linear scattering\, to genuinely non-linear disordered materials. I will conclude with perspec tives on how such physical systems can be trained\, and what they could of fer in terms of energy efficiency and scalability. Sylvain Gigan has been a Professor of Physics at Sorbonne Université since 2014. He conducts hi s research at the Kastler Brossel Laboratory (Physics Department of the É cole Normale Supérieure)\, where he leads a research group dedicated to p hotonics and complex media.After earning his PhD in quantum optics at UPMC in 2004 under the supervision of Claude Fabre \, he joined the University of Vienna (Austria) as a postdoctoral researcher in the group of Markus A spelmeyer and Anton Zeilinger\, working on quantum optomechanics. From 200 7 to 2014\, he was an Associate Professor at the Langevin Institute (ESPCI ParisTech)\, where he pioneered his research on controlling light in comp lex media. His current work focuses on wave propagation in highly scatteri ng media. Historically centered on deep imaging and mesoscopic physics\, h is research has now expanded to harnessing optical disorder for high-dimen sional quantum information and optical computing (hardware acceleration fo r artificial intelligence). In 2016\, his fundamental research led to the co-founding of the spin-off LightOn. LOCATION:Heinzel Seminar Room\, ISTA ORGANIZER:omerhalil.unal@ista.ac.at SUMMARY:Sylvain Gigan: Non-linear optical processing with random media URL:https://talks-calendar.ista.ac.at/events/6690 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1792393200@ist.ac.at DTSTART:20261019T090000 DTEND:20261021T170000 DESCRIPTION:hosted by Jorryt Matthee\nAbstract: First light on the ELT is n ominally three years away. Time is ticking for us to start thinking about how to best use the ELT. The Austrian Academy of Science is financing a se ries of 5 yearly meetings leading up to first light. The main aim is to br ing together the future ELT community and to help build the science cases and proposals that will shape the ELT’s initial observing periods. A key goal of the meeting is to connect the instrument builders with the future users of the ELT\, in order to educate the community for how to best make use of these instruments once they are on-sky.This three-day meeting aims to cover numerous discussions on early ELT science topics across instrume nts\, as well as simulated observations that guide observing strategies. T he meeting will complement traditional scientific presentations with a sim ulation hackathons in the afternoons.For 2026\, the scientific focus is on science and simulations at the edge of the sensitivity limits enabled by the large collecting power of the ELT’s 40m mirror. LOCATION:Moonstone Building\, ISTA ORGANIZER:niels.eelman@ista.ac.at SUMMARY:Austrian ELT Workshop URL:https://talks-calendar.ista.ac.at/events/6616 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1792396800@ist.ac.at DTSTART:20261019T100000 DTEND:20261019T110000 DESCRIPTION:Speaker: Adrijana Smoljan\nhosted by Andela Saric\nAbstract: Th e successful colonization of terrestrial environments by plants required t he evolution of developmental and signalling mechanisms that enabled adapt ation to increasingly heterogeneous environments. Among these innovations\ , environmental sensing and directional transport of the plant hormone aux in have played central roles in shaping plant morphology and adaptation to external cues. However\, the evolutionary origins of these regulatory sys tems remain incompletely understood. This thesis investigates two fundamen tal evolutionary questions: when auxin transport mediated by PIN auxin tra nsporters emerged during plant evolution and how MIZ1 proteins acquired th eir role in root hydrotropism.The first part of the thesis examines the ev olution of PIN-FORMED (PIN) auxin transporters using chlorophyte algae and other early-diverging eukaryotic lineages. Physiological analyses demonst rated that chlorophyte algae exhibit concentration-dependent responses to exogenous auxin and possess both passive and energy-dependent auxin transp ort systems\, indicating that fundamental aspects of auxin biology predate the emergence of land plants. Phylogenetic\, structural\, and functional analyses revealed that PIN homologs are broadly distributed across diverse eukaryotic lineages and retain the characteristic PIN protein fold and pr edicted auxin-binding residues. However\, heterologous expression assays i n Xenopus laevis oocytes\, tobacco BY-2 cells\, and Arabidopsis thaliana d emonstrated that these ancestral PIN homologs lack the directional auxin e xport activity characteristic of canonical land plant PIN proteins. Instea d\, they predominantly localize to the endoplasmic reticulum and display l imited or no auxin transport activity\, suggesting that ancestral PIN prot eins primarily functioned in intracellular auxin homeostasis before being recruited for polar auxin transport during land plant evolution.The second part of the thesis investigates the evolutionary diversification of MIZ1 proteins\, key regulators of root hydrotropism in Arabidopsis thaliana. Ph ylogenetic analyses showed that MIZ1 proteins are conserved throughout lan d plants but absent from green algae\, indicating that the protein family originated early during terrestrialization. Although MIZ1 homologs from Ma rchantia polymorpha\, Physcomitrium patens\, Selaginella moellendorffii\, and Amborella trichopoda displayed highly conserved predicted structures a nd endoplasmic reticulum localization\, none were able to complement the h ydrotropic or cytokinin-response defects of the Arabidopsis miz1 mutant. F unctional characterization of Marchantia revealed that MpMIZ1a regulates t hallus development\, cytokinin-dependent growth responses\, expression of cytokinin biosynthetic genes\, and normal sporophyte development\, indicat ing an ancestral role in cytokinin homeostasis and developmental regulatio n rather than hydrotropism. Furthermore\, protein docking predicted an int eraction between MpMIZ1a and its native cytokinin receptor MpCHK\, which w as supported experimentally by bimolecular fluorescence complementation (B iFC). BiFC revealed interactions between the cognate protein pairs MpMIZ1a –MpCHK and AtMIZ1–AtAHK4\, whereas little or no interaction was detect ed for the reciprocal cross-species combinations MpMIZ1a–AtAHK4 and AtMI Z1–MpCHK. This species-specific interaction compatibility provides a pot ential mechanistic explanation for the inability of MpMIZ1a to functionall y complement the Arabidopsis miz1 mutant. Together\, the findings present ed in this thesis demonstrate that both auxin transport and MIZ1 protein f unction evolved through the progressive modification and recruitment of an cestral molecular components. The results support a model in which early P IN proteins primarily regulated intracellular auxin homeostasis before evo lving into specialized plasma membrane auxin exporters\, while MIZ1 protei ns originated as endoplasmic reticulum-associated regulators of cytokinin- dependent development and were subsequently recruited into the hydrotropic signalling pathway of seed plants. By integrating comparative genomics\, structural biology\, molecular genetics\, live-cell imaging\, and physiolo gical analyses across diverse evolutionary lineages\, this work provides n ew insights into the molecular innovations that contributed to the success ful colonization of terrestrial environments and the evolution of developm ental plasticity in land plants. LOCATION:Central Bldg / O1 / Mondi 2a (I01.O1.008)\, ISTA ORGANIZER: SUMMARY:Adrijana Smoljan: Thesis Defense: Evolution of auxin transport and MIZ1-mediated developmental responses during plant adaptation to terrestri al environments URL:https://talks-calendar.ista.ac.at/events/6666 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1792402200@ist.ac.at DTSTART:20261019T113000 DTEND:20261019T123000 DESCRIPTION:Speaker: Wilfrid Jean Louis\nhosted by AURAS\nAbstract: Wilfrid Jean Louis | AURAS Survey 2026: The PhD and Postdoc Experience at ISTATh e AURAS 2026 survey gathered feedback from more than 220 PhD students and postdocs at ISTA\, 45% of the institute’s PhD students participated. The survey explored different aspects of the experience at ISTA\, including r esearch and working environments\, workload and well-being\, teaching and courses\, career development\, workplace safety\, institutional support\, representation\, and track communities. In this colloquium\, AURAS will p resent the main findings of the survey\, highlighting both positive aspect s of the institute experience and areas where students and postdocs see op portunities for improvement. The presentation will also discuss difference s across tracks and identify themes that emerged across the institute as a whole. LOCATION:Raiffeisen Lecture Hall\, ISTA ORGANIZER:diana.zubcevic@ista.ac.at SUMMARY:Wilfrid Jean Louis: Special Colloquium | AURAS | Wilfrid Jean Louis URL:https://talks-calendar.ista.ac.at/events/6614 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1792494000@ist.ac.at DTSTART:20261020T130000 DTEND:20261020T140000 DESCRIPTION:Speaker: Yuri Ignatyev\nhosted by Beatriz Vicoso\nAbstract: The spinal cord plays a central role in sensorimotor behavior\, integrating s ensory input and descending commands from the brain to generate movement. Like the brain\, it is composed of diverse populations of excitatory and i nhibitory neurons. Over the course of evolution\, vertebrates have adapted to new environments and evolved distinct body plans\, yet it remains uncl ear how the neuronal architecture of the spinal cord has changed to suppor t these adaptations. Advances in single-cell genomics have made it possibl e to characterize neuronal diversity at single-cell resolution\, but in th e spinal cord such data are largely limited to mammals. To address this ga p and understand how spinal neuronal diversity has evolved\, this thesis c ompares spinal cell types across vertebrates\, including zebrafish\, frog\ , lizard\, mouse and human.First\, we generate a single-cell transcriptomi c atlas of the developing spinal cord of the amphibian Xenopus laevis and compare it with mouse developmental data. This reveals a highly conserved developmental framework across tetrapods\, including conservation of the m ajor cardinal classes\, their spatial distributions and temporal subdivisi ons.Second\, we extend this comparison to the adult spinal cord by generat ing a single-cell and spatial transcriptomic atlas of the frog spinal cord and comparing it with mouse and human data. In contrast to development\, we find marked divergence between amphibians and mammals\, largely restric ted to dorsal excitatory interneurons of the superficial dorsal horn\, inc luding several mammalian-specific populations. Adding zebrafish further su pports the dorsal excitatory compartment as a major site of species-specif ic diversification.Finally\, we characterize the adult spinal cord of the lizard Pogona vitticeps to test whether these populations are specific to mammals or shared across amniotes. This analysis further supports their ma mmalian specificity and links them to late-born dorsal lineages.Together\, these findings suggest that the spinal cord is built on a largely conserv ed developmental framework\, whereas adult neuronal diversity has diverged selectively in the dorsal spinal cord. The superficial dorsal spinal cord thus emerges as a recently evolved hub for sensory integration in mammals . LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101 ) and Zoom\, ISTA ORGANIZER: SUMMARY:Yuri Ignatyev: Thesis Defense: Deciphering spinal interneuron heter ogeneity across vertebrate evolution URL:https://talks-calendar.ista.ac.at/events/6691 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:6a1e9cbf7410b628841470@ist.ac.at DTSTART:20261020T150000 DTEND:20261020T170000 DESCRIPTION:Speaker: David Spitzkopf\nhosted by Robert Seiringer\nAbstract: Soft quantum waveguides are quantum mechanical systems in which aparticle is confined by an attractive potential in the vicinity of a curve\,rather than by a hard boundary or singular interaction. I will discuss twogeomet ric perturbations of such systems. The first concerns an array ofpotential wells in dimensions two and higher\, where the axial symmetry isdiscrete. Shifting finitely many wells along the axis\, even a single one and byan arbitrarily small amount\, produces a bound state below the essentialspect rum. The second concerns a twisted soft waveguide in three dimensions\,for which I will present a Hardy inequality. It shows that the Hamiltonian is subcritical\, so that weak attractive perturbations do not bind. LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101 )\, ISTA ORGANIZER:boosthui@ist.ac.at SUMMARY:David Spitzkopf: Geometric perturbations of soft quantum waveguides URL:https://talks-calendar.ista.ac.at/events/6668 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:6a35020e9b79b600190016@ist.ac.at DTSTART:20261021T130000 DTEND:20261021T140000 DESCRIPTION:Speaker: Vladimir Mitankin\nhosted by Tim Browning\nAbstract: In this talk I will explain a new method for counting instances of the Bra uer-Manin obstruction (BMO) to the Hasse principle (HP) in families\, wher e no uniform description of Brauer elements across the family is available . The method consists of three novel ingredients\, whose common goal is to produce an asymptotic formula for the number of BMOs to HP in the family\ , ordered with respect to a natural height function. This talk is based on several works in progress with Leo Schfer\, Damaris Schindler and Florian Wilsch and with Alexandros Konstantinou\, Margherita Pagano and Harry Cra wford Shaw. LOCATION:Central Bldg / O1 / Mondi 2a (I01.O1.008)\, ISTA ORGANIZER:boosthui@ist.ac.at SUMMARY:Vladimir Mitankin: Failures of the Hasse principle in families URL:https://talks-calendar.ista.ac.at/events/6692 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:68761c2b8bc7c420411241@ist.ac.at DTSTART:20261022T103000 DTEND:20261022T120000 DESCRIPTION:Speaker: Guillaume Vives\nhosted by Latha Venkataraman\nAbstrac t: How can molecular motion be transformed into function? Molecular machin es offer unique opportunities to control motion at the molecular scale\, y et achieving the complexity and functionality of natural systems remains c hallenging. This lecture will present our approach to designing molecular machines that convert controlled mechanical motion into function. First\, switchable molecular tweezers will be presented as versatile platforms for controlling luminescence\, magnetism\, catalysis\, and even sol-gel trans itions. Our work on cyclodextrin-based rotaxanes will also be highlighted\ , exploiting the cone-shaped structure and selective functionalization of cyclodextrins to achieve unidirectional\, active motion through an informa tion-ratchet mechanism. LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101 )\, ISTA ORGANIZER:hcai@ist.ac.at SUMMARY:Guillaume Vives: Functional Molecular Machines: From Switchable Mol ecular Tweezers to Cyclodextrin-Based Information Ratchets URL:https://talks-calendar.ista.ac.at/events/5938 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:68498ab73a3ea656842285@ist.ac.at DTSTART:20261103T110000 DTEND:20261103T120000 DESCRIPTION:Speaker: Christian Kraglund Andersen\nhosted by Johannes Fink\n Abstract: tbc LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101 )\, ISTA ORGANIZER:swiddman@ist.ac.at SUMMARY:Christian Kraglund Andersen: Towards the next generation of superco nducting qubit URL:https://talks-calendar.ista.ac.at/events/6556 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1794216600@ist.ac.at DTSTART:20261109T103000 DTEND:20261109T113000 DESCRIPTION:Speaker: Chao Shen\nhosted by Maximilian Jösch\nAbstract: It i s a basic property of electromagnetic waves that they propagate. Yet the i mplications of this fact are often glossed over when it comes to nonlinear terahertz (THz) spectroscopy of bulk dielectrics\, with propagation effec ts being given marginal attention. In thick samples\, the THz fields\, opt ical probe\, and nonlinear polarization all propagate with different veloc ities\, experiencing different dispersion\, absorption and birefringence. This gives rise to complicated nonlinear optical interactions prone to mis interpretation in the absence of a comprehensive theoretical framework. Th is thesis combines two-dimensional THz Kerr-effect spectroscopy (2D-TKE)\, two-dimensional THz-field-induced second-harmonic generation (2D-TFISH)\, and propagation-resolved numerical modeling to interpret time-resolved TH z-pump/optical-probe spectroscopies and track nonlinear THz polariton tran sport in bulk dielectrics.In birefringent LaAlO$_3$\, we use 2D-TKE data a nd four-wave-mixing simulations to separate propagation-induced electronic features from the intrinsic Raman-mediated Kerr response. We unambiguousl y identify the $0.86~\\mathrm{THz}$ and $0.36~\\mathrm{THz}$ oscillations in TKE as arising from phase-matched co- and counter-propagating THz-pump/ optical-probe coupling\, whereas the $1.1~\\mathrm{THz}$ oscillation arise s from the $E_g$ Raman phonon in LaAlO$_3$ excited through THz two-photon absorption.In KTaO$_3$\, we identify the origin of the non-oscillatory par t of the TFISH signal by combining single-pulse and 2D-TFISH measurements with simulations based on a Maxwell--Duffing model. We show that propagati ng soft-mode polaritons produce non-local transient polarization inside th e sample. Spatial integration of the TFISH response at different locations acts to single out a polariton mode with a wavevector corresponding to th e phase mismatch between the probe and its second harmonic. A Maxwell--Duf fing model reproduces the temperature and field-strength dependence of bot h the single-pulse and 2D-TFISH signals\, showing that the non-oscillatory component arises purely from nonlinear polariton propagation effects with out invoking transient ferroelectricity. The 2D data also rule out the pro posed mechanisms based on relaxational polar nanoregions or hot phonons.Fi nally\, we develop a spatiotemporal method for tracking soft-mode phonon-p olariton transport in bulk SrTiO$_3$ using 2D-TKE. The nonlinear Kerr sign al is shown to probe the spatial overlap between two independent polariton ic wave packets. Then\, using the less anharmonic $A_{2u}$ polariton as a moving reference\, we track the field-dependent evolution of $E_u$ polarit ons. We observe that anharmonic effects lead to the formation of additiona l polarization accumulation near the sample entrance and an approximately 30\\% increase in the effective velocity of the leading peak of the $E_u$ polariton. A minimal Maxwell--Duffing model captures many qualitative feat ures of the 2D-TKE signal\, including the entrance-layer response\, but pr edicts a substantially weaker velocity renormalization than observed exper imentally. These results establish 2D-TKE as a protocol to trace field-tun able polariton transport in an anharmonic medium\, while revealing behavio r beyond the Maxwell--Duffing description.Together\, these results establi sh propagation as a crucial part of understanding nonlinear THz spectrosco py of bulk dielectrics. Propagation effects can mimic intrinsic material r esponse but\, when identified\, become a sensitive probe of nonlinear latt ice dynamics and transport in quantum materials. LOCATION:Sunstone Bldg / Ground floor / Big Seminar Room A (I23.EG.102) \, ISTA ORGANIZER: SUMMARY:Chao Shen: Propagation-Resolved Nonlinear Terahertz Spectroscopy of Bulk Dielectrics URL:https://talks-calendar.ista.ac.at/events/6683 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1794220200@ist.ac.at DTSTART:20261109T113000 DTEND:20261109T123000 DESCRIPTION:Speaker: Lauren O'Connell\nhosted by Lora Sweeney\nAbstract: Ti tle | Lessons from Poison Frogs on Ecological Tuning of Animal Behavior a nd PhysiologyAbstract |Behavior and physiology are the substrates of natu ral selection. Our overarching goal is to understand how new traits in phy siology and social behavior have evolved from existing genetic and cellula r components using poison frogs as research organisms. First\, we want to understand how organisms evolve ways to evade predation by using natural p roducts that target the nervous system. Animals with a rich diversity of c hemical defenses must also protect their own nervous systems from toxicity . We recently discovered toxin sponge proteins that bind deadly toxins and transport them to specific locations in poison frogs. Such a system is ri pe for reverse engineering drug carriers to better understand how chemical defenses evolve. Second\, we want to understand how new social behaviors evolve through changes in nervous system function using a comparative\, or ganismal approach. We have established poison frog tadpoles as a model sys tem for infant social behavior\, where species have evolved new communicat ion and social behaviors based on their rearing environments. Together\, t hese research avenues are enabling us to understand the design principles of chemical defense and social behaviors. LOCATION:Raiffeisen Lecture Hall\, ISTA ORGANIZER:diana.zubcevic@ista.ac.at SUMMARY:Lauren O'Connell: Lessons from Poison Frogs on Ecological Tuning of Animal Behavior and Physiology URL:https://talks-calendar.ista.ac.at/events/6550 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1794317400@ist.ac.at DTSTART:20261110T143000 DTEND:20261110T171500 DESCRIPTION:Speaker: ISTA Sustainability Day - Sofia Pazzagli\nhosted by Je roen Dobbelaere\nAbstract: ISTA Sustainability DayThe first ISTA Sustaina bility Day aims to bring together people from all research fields to exch ange ideas and discuss how sustainability can be better integrated into re search\, teaching\, and operations at ISTA. The program will feature Sofia Pazzagli who transitioned her research to include more sustainable resear ch practices. After a short break we will have a panel discussion with IST A scientists sharing what has worked—and what hasn’t—in their own ef forts. The afternoon will conclude with a World Café session with externa l experts\, encouraging open exchange and collaborative ideas on concrete actions ISTA can take toward a more sustainable future. REGISTRATION (htt ps://pretix.eu/ista-events/Sustainability-Day-2026/)Program Overview14.30. Opening.14.40 KeynoteSofia Pazzagli (Humbolt University Berlin\, DE)Can  research build a sustainable future? What scientific training often leaves out15.30. Intermezzo15.45. Panel Discussion – Challenges integrating sustainability in research(Stefan Freunberger\, Florian Praetorius\, Jul ia Reisenbauer and Caroline Muller) 16.30. World Café - Coffee and Su stainability Café Funding (Ina Matt\, FWF) - Reporting (Mariano Calcabri ni\, Susform) -Travel (Julia Gram\, University of Vienna)\, Plastics (Gree n Labs\, Andrea Tramontano) Consumables and green chemicals (Bianca Köck\ , TUWien) Academic Strategy (Elena Beringer\,  Boku)17.00 – 17.15 - P resentation results17.30 Food and Drinks LOCATION:Raiffeisen Lecture Hall\, ISTA ORGANIZER: SUMMARY:ISTA Sustainability Day - Sofia Pazzagli: ISTA Sustainability Day URL:https://talks-calendar.ista.ac.at/events/6673 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1794398400@ist.ac.at DTSTART:20261111T130000 DTEND:20261111T140000 DESCRIPTION:Speaker: Katy Woo\nhosted by Vivian Kuperberg\nAbstract: There is a long-standing history of using prime counting results to prove new th eorems about arithmetic objects\; Dirichlet’s theorem on primes in arith metic progressions was a key input in Hasse’s original proof of the loca l-to-global principle for quadratic forms over Q. In Corollary X.6.2.1 of Silverman’s “The Arithmetic of Elliptic Curves”\, any elliptic curve of the form y^2 = x^3 + px for p a prime number congruent to 7 mod 16 is shown to have rank zero\; Dirichlet’s theorem can be applied to show tha t there are infinitely many such elliptic curves. The breakthrough work of Green\, Tao\, and Ziegler on simultaneously prime values of linear system s was applied both to study Brauer-Manin obstructions to local-to-global p rinciples for certain conic bundles and to construct families of elliptic curves with rank 1.In this talk\, we will build on the seminal work of Gre en and Sawhney to prove new instances of the multivariate Bateman-Horn con jecture\; the key input will be methods from additive combinatorics. We wi ll then discuss how to use these new prime counting results to study the B rauer-Manin obstruction to local-to-global principles for an expanded clas s of conic bundles and construct quadratic twist families of elliptic curv es with rank 2.This talk is based on joint work with Niven Achenjang. LOCATION:Mondi 2\, Central Building\, ISTA ORGANIZER: SUMMARY:Katy Woo: Arithmetic consequences of additive combinatorics URL:https://talks-calendar.ista.ac.at/events/6675 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1794825000@ist.ac.at DTSTART:20261116T113000 DTEND:20261116T123000 DESCRIPTION:Speaker: Vivian Kuperberg & Carla Fernandez-Rico\nhosted by Mik hail Lemeshko LOCATION:ISTA | Central Building | Raiffeisen Lecture Hall\, ISTA ORGANIZER:diana.zubcevic@ista.ac.at SUMMARY:Vivian Kuperberg & Carla Fernandez-Rico: Inaugural Lecture | Vivian Kuperberg & Carla Fernandez-Rico URL:https://talks-calendar.ista.ac.at/events/6389 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:68498ab73a3f1770646428@ist.ac.at DTSTART:20261117T110000 DTEND:20261117T120000 DESCRIPTION:Speaker: Sebastian Hofferberth\nhosted by Julian Léonard\nAb stract: Mapping the strong interaction between Rydberg excitations in ultr acold atomic ensembles onto single photons enables the realization of opti cal nonlinearities which can modify light on the level of individual photo ns. This novel approach forms the basis of a growing Rydberg quantum optic s toolbox\, which enables photonic logic building-blocks such as single-ph oton sources\, all-optical transistors and photonic quantum gates. More br oadly\, interacting photons are a novel approach to realize strongly corre lated quantum few-body systems.In this talk\, I will introduce the general concepts of Rydberg quantum optics and present recent experiments from ou r labs utilizing both Rubidium and Ytterbium atoms as nonlinear medium. Sp ecifically\, I will show recent results on transverse photon-photon intera ction enabling photon-number dependent beam-shaping. Furthermore\, I will present our first investigations of Rydberg-mediated photon-interaction in Ytterbium\, highlighting possible advantages of this new platform. LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101 )\, ISTA ORGANIZER:sdolot@ist.ac.at SUMMARY:Sebastian Hofferberth: "\;Nonlinear quantum optics vie interact ing Rydberg atoms"\; URL:https://talks-calendar.ista.ac.at/events/6558 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1795098600@ist.ac.at DTSTART:20261119T153000 DTEND:20261119T170000 DESCRIPTION:Speaker: Güneş Taylor LOCATION:Central Building\, Raiffeisen Lecture Hall\, ISTA ORGANIZER:events@ista.aca.t SUMMARY:Güneş Taylor: No Margin for Error: Navigating Academia without a Financial Safety Net URL:https://talks-calendar.ista.ac.at/events/6679 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1795429800@ist.ac.at DTSTART:20261123T113000 DTEND:20261123T123000 DESCRIPTION:Speaker: Kim Modic\nhosted by Mikhail Lemeshko LOCATION:ISTA | Central Building | Raiffeisen Lecture Hall\, ISTA ORGANIZER:diana.zubcevic@ista.ac.at SUMMARY:Kim Modic: Tenure Talk | Kim Modic URL:https://talks-calendar.ista.ac.at/events/6390 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1795593600@ist.ac.at DTSTART:20261125T090000 DTEND:20261125T170000 DESCRIPTION:hosted by Dan Alistarh\nAbstract: Join us for the second BilA I Industry Day at the Institute of Science and Technology Austria (ISTA)  in Klosterneuburg and get in touch with AI research to foster strong pa rtnerships and accelerate real-world innovation. Leading experts from acad emia and industry will come together to share insights\, showcase results and explore new pathways for bilateral collaboration in AI.Date: November 25\, 2026Venue: Institute of Science and Technology Austria\, 3400 Klost erneuburgRegistration details and the programme will follow soon. What to expect:Updates for key industry players on ongoing research and results from Bilateral AINetworking OpportunitiesInsights into related industrial research and development activities:Keynote speeches from industry and re searchTalks and discussionsPoster sessionsBe part of shaping a shared AI f uture - grounded in research\, driven by innovation. LOCATION:Raiffeisen Lecture Hall\, ISTA ORGANIZER:events@ista.ac.at SUMMARY:BilAI Industry Day 2026 URL:https://talks-calendar.ista.ac.at/events/6602 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1796374800@ist.ac.at DTSTART:20261204T100000 DTEND:20261204T110000 DESCRIPTION:Speaker: Aleksander Bena\nhosted by Calin Guet\nAbstract: Trans ition-metal catalysis has transformed modern organic synthesis\, enabling the efficient and selective formation of chemical bonds. The success of th is field largely depended on the development of tailored ligands that can tune the reactivity of the metal center. Nickel catalysis has emerged as a particularly versatile platform for cross-coupling reactions\, thanks to its ability to access multiple oxidation states. However\, the instability of paramagnetic nickel species can make these reactions difficult to cont rol. Despite the central role of ligands in transition-metal catalysis\, t heir use in tuning the reactivity of such nickel intermediates remains com paratively underexplored. Modular amino-functionalized bipyridine ligands were developed to control the reactivity of Ni(I) intermediates and facil itate challenging elementary steps in cross-coupling catalysis. This appro ach facilitated carbon-carbon and carbon-heteroatom bond formation via Ni( I)/Ni(III) catalytic pathways. Notably\, a new ligand-design facilitated v isible-light induced C(sp²)-heteroatom cross-coupling reactions\, elimina ting the need for an additional photocatalyst and enabling the coupling of a broad range of nitrogen-\, oxygen-\, sulfur- and phosphorus-based nucle ophiles with challenging aryl electrophiles\, using unprecedented low cata lyst loadings. LOCATION:Sunstone Bldg / Ground floor / Lab Meeting room (I23.EG.005)\, IST A ORGANIZER: SUMMARY:Aleksander Bena: Tuning the Catalytic Reactivity of Ni(I) through L igand Design URL:https://talks-calendar.ista.ac.at/events/6689 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1796639400@ist.ac.at DTSTART:20261207T113000 DTEND:20261207T123000 DESCRIPTION:Speaker: Daniel Robert\nhosted by Scott Waitukaitis LOCATION:Raiffeisen Lecture Hall\, ISTA ORGANIZER:diana.zubcevic@ista.ac.at SUMMARY:Daniel Robert: Institute Colloquium | Daniel Robert URL:https://talks-calendar.ista.ac.at/events/6551 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1797244200@ist.ac.at DTSTART:20261214T113000 DTEND:20261214T123000 DESCRIPTION:Speaker: Monika Visan & Simone Fatichi LOCATION:Raiffeisen Lecture Hall\, ISTA ORGANIZER:diana.zubcevic@ista.ac.at SUMMARY:Monika Visan & Simone Fatichi: Inaugural Lecture | Monika Visan & S imone Fatichi URL:https://talks-calendar.ista.ac.at/events/6552 END:VEVENT BEGIN:VEVENT DTSTAMP:20261012T222932Z UID:1800268200@ist.ac.at DTSTART:20270118T113000 DTEND:20270118T123000 DESCRIPTION:Speaker: Lora Sweeney\nhosted by Mario de Bono LOCATION:ISTA | Central Building | Raiffeisen Lecture Hall\, ISTA ORGANIZER:diana.zubcevic@ista.ac.at SUMMARY:Lora Sweeney: Tenure Talk | Lora Sweeney URL:https://talks-calendar.ista.ac.at/events/6387 END:VEVENT END:VCALENDAR