BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20240331T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20241027T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260405T162350Z
UID:1718701200@ist.ac.at
DTSTART:20240618T110000
DTEND:20240618T120000
DESCRIPTION:Speaker: Gloria Platero\nhosted by Georgios Katsaros\nAbstract:
  The recent progress in the fabrication and control of semiconductor quant
 um dot arrayssignals a substantial leap towards scalability and towards th
 e implementation of newfunctionalities in the field of quantum information
 \, computation and simulation[1]. Anexample of this\, is the transfer of q
 uantum information between distant sites\, anindispensable part of large-s
 cale quantum information processing.Great effort is currently being devote
 d to the investigation of hole spin qubits in quantumdots owing to their l
 ong coherence time resulting from the weak hyperfine coupling tonuclear sp
 ins and rapid operation time due to the inherently strong spin-orbit inter
 action(SOI) [2-5].In this talk I will discuss pulse-based protocols based 
 on shortcuts to adiabaticity\, whichallow to transfer spin holes directly 
 between edges of a quantum dot chain with highfidelity. I will show how th
 e spin polarization of the transferred holes can be controlledby tuning th
 e ratio between the SOI and the spin conserving tunneling rate. Also\, I w
 illdiscuss how to transfer entangled hole spins between edge dots and the 
 feasibility ofquantum dot arrays to distribute information between distant
  sites and perform one qubitgates in parallel [6].An alternative way to tr
 ansfer directly information between distant sites\, is to useprotected top
 ological edge states in systems with non-trivial topology. I will brieflyd
 iscuss the long-range particle dynamics mediated by edge states in differe
 nt quantumdot array configurations\, which can be experimentally detected 
 with QDs chargedetectors\, and which opens a new avenue for quantum state 
 transfer protocols in lowdimensional topological lattices [7]. [1] S. G. 
 J. Philips\, et al.\, Nature 609\, 919 (2022)\; I. Seidler\, et al.\, npj 
 QI 8\, 100 (2022)\; A.Zwerver et al.\, PRX Quantum 4\, 030303 (2023)[2] D.
  Jirovec et al.\, Nature Mat.\, 20\, 1106 (2021)[3]G. Scappucci et al.\, N
 ature Rev. Mat.\, 6\, 926 (2021)[4] D. Jirovec et al.\, Phys Rev B\, 128\,
  126803 (2022)[5]D. Fernández-Fernández et al.\, Phys. Rev. Appl. 8\, 05
 4090 (2022)\; D. Fernández-Fernández\,et al.\, J. Phys. Mater. 6 034004 
 (2023).[6] D. Fernández-Fernández\, Y. Ban\, G. Platero arXiv: 2312.0463
 1 (2023)[7] B. Pérez-González et al.\, Phys. Rev. Lett. 123\, 126401 (20
 19)\; J. Zurita et al.\,Quantum\,7\,1043 (2023).
LOCATION:Heinzel Seminar Room / Ground Floor / Office Building West\, ISTA
ORGANIZER:sandra.widdmann@ista.ac.at
SUMMARY:Gloria Platero: Quantum State Transfer in Semiconductor Quantum Dot
  Arrays
URL:https://talks-calendar.ista.ac.at/events/4719
END:VEVENT
END:VCALENDAR