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THU: Thursday Contributed Sessions
THU 13: Poster Session: Applications
THU 13.30: Poster
Donnerstag, 11. September 2025, 16:30–18:30, ZHG Foyer 1. OG
Comparing on-off detector and single photon detector in photon subtraction based continuous variable quantum teleportation — Chandan Kumar1,2, •Karunesh Mishra3, and Sibasish Ghosh1,2 — 1Optics and Quantum Information Group, The Institute of Mathematical Sciences, Chennai, India — 2Homi Bhabha National Institute, Mumbai, India — 3Extreme Light Infrastructure - Nuclear Physics, Bucharest, Romania
We consider two distinct photon detectors namely, single photon detector and on-off detector, to implement photon subtraction on a two-mode squeezed vacuum state. The two distinct photon subtracted two-mode squeezed vacuum states generated are utilized individually as resource states in continuous variable quantum teleportation. Owing to the fact that the two generated states have different success probabilities (of photon subtraction) and fidelities (of quantum teleportation), we consider the product of the success probability and fidelity enhancement as a figure of merit for the comparison of the two detectors. The results show that the single photon detector should be preferred over the on-off detector for the maximization of the considered figure of merit.
Ref.: arXiv:2409.16072 [quant-ph]
Keywords: Continuous variable quantum teleportation; Photon subtraction; On-off detector; Single photon detector