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X-FROM-URL:https://eom.sdu.dk/events/ical/330b6019-d6a4-469a-ae85-a3f3b227
 d9f9
X-WR-CALNAME:QC Introductory Seminar: Continuous-variable quantum computin
 g with photonics
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DTSTART:20261028T030000
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DESCRIPTION:[b]Speaker: Olga Solodovnikova[/b] (University of Southern Den
 mark).\n\n[b]Abstract: [/b]\nIn this seminar\, I will introduce continuou
 s quantum variables [1]\, which are used to describe systems of oscillato
 rs\, that is\, systems with infinite Hilbert spaces such as photonic syst
 ems or the vibrational motion of trapped ions. \nTo build a universal and
  fault-tolerant quantum computer with a continuous-variable system\, it i
 s necessary to encode a qubit in an oscillator\, perform gates from the u
 niversal gate set\, and measure stabilisers to implement error correction
 .  \n\nIn the second part of the introductory seminar\, I will introduce 
 the measurement-based quantum computing framework for optical systems\, i
 n which Gottesman-Kitaev-Preskill (GKP) states are injected into a cluste
 r state\, and homodyne/heterodyne detectors are used to i) apply gates vi
 a teleportation and ii) measure stabilisers [2]. Lastly\, I will discuss 
 the experimental progress on building a measurement-based quantum compute
 r [3]\, where\, in particular\, the generation of GKP states [4] is a maj
 or bottleneck due to photon loss. \n\n[1] Braunstein and van Loock. “Quan
 tum Information with Continuous Variables.” [i]Rev. Mod. Phys.[/i] 77\, n
 o. 2 (2005).\n[2] Gottesman\, et al. “Encoding a Qubit in an Oscillator.”
  [i]Physical Review A[/i] 64\, no. 1 (2001): 012310. \n[3] Aghaee Rad\, H
 .\, T. Ainsworth\, R. N. Alexander\, et al. “Scaling and Networking a Mod
 ular Photonic Quantum Computer.” [i]Nature[/i] 638\, no. 8052 (2025): 912
 –19. \n[4] Larsen\, M. V.\, J. E. Bourassa\, S. Kocsis\, et al. “Integrat
 ed Photonic Source of Gottesman–Kitaev–Preskill Qubits.” [i]Nature[/i] 64
 2\, no. 8068 (2025): 587–91.
DTEND:20260506T140000Z
DTSTAMP:20260602T163438Z
DTSTART:20260506T130000Z
LOCATION:Syddansk Universitet\, Campusvej 55\, 5230\, Odense M
SEQUENCE:0
SUMMARY:QC Introductory Seminar: Continuous-variable quantum computing wit
 h photonics
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