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DTSTART:20170326T030000
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DTSTAMP:20260427T194930Z
UID:598ae519d010d910396653@ist.ac.at
DTSTART:20170830T123000
DTEND:20170830T134500
DESCRIPTION:Speaker: Harald Schwefel\nhosted by Johannes Fink\nAbstract: Su
 perconducting microwave qubits are a likely driving force of future quantu
 m information technologies and have boosted the interest in converting qua
 ntum states from the microwave to the optical domain. The reason lies in t
 he fact that microwave photons decohere quickly at room temperature but op
 tical photons with their much higher energy do not. Furthermore\, the opti
 cal domain offers a readily available fibre network allowing for long dist
 ance communication. Moreover\, the optical domain offers access to a large
  set of very well developed quantum optical tools\, such as highly efficie
 nt single-photon detectors and long-lived quantum memories. In my presenta
 tion I show that single sideband operation is possible by harvesting stron
 g polarization coupling\, without the need for detuning of pump modes.1 Th
 e photon conversion efficiency we reach is three orders of magnitude highe
 r than in previous works.2\,3 Furthermore\, our system has a bandwidth of 
 several MHz and is compatible with circuit QED. Within in the talk I will 
 introduce the concept of high-Q whispering gallery mode resonators (WGM) a
 nd present some of their features that make them ideal for nonlinear optic
 s and quantum optics. 1. A. Rueda et al.\, Efficient microwave to optical 
 photon conversion: an electro-optical realization\, Optica\, OPTICA 3(6)\,
  597 604 (2016) [doi:10.1364/OPTICA.3.000597]. 2. V. S. Ilchenko et al.\, 
 Whispering-gallery-mode electro-optic modulator and photonic microwave rec
 eiver\, J. Opt. Soc. Am. B 20(2)\, 333 342 (2003) [doi:10.1364/JOSAB.20.00
 0333]. 3. D. V. Strekalov et al.\, Microwave whispering-gallery resonator 
 for efficient optical up-conversion\, Phys. Rev. A 80(3)\, 033810 033815 (
 2009) [doi:10.1103/PhysRevA.80.033810].\n
LOCATION:Big Seminar room Ground floor / Office Bldg West (I21.EG.101)\, IS
 TA
ORGANIZER:sdanzing@ist.ac.at
SUMMARY:Harald Schwefel: Single sideband microwave to optical photon conver
 sion – an electro-optic realization
URL:https://talks-calendar.ista.ac.at/events/701
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