Sub-Poissonian light in fluctuating thermal-loss bosonic channels
https://doi.org/10.17586/2220-8054-2025-16-3-333-342
Abstract
We study the photon statistics of a single-mode sub-Poissonian light propagating in the lossy thermal bosonic channel with fluctuating transmittance which can be regarded as a temperature-dependent model of the turbulent atmosphere. By assuming that the variance of the transmittance can be expressed in terms of the fluctuation strength parameter we show that the photon statistics of the light remains sub-Poissonian provided the averaged transmittance exceeds its critical value. The critical transmittance is analytically computed as a function of the input states’ parameters, temperature, and the fluctuation strength. The results are applied to study special cases of the one-mode squeezed states and the odd optical Shr¨odinger cats.
Supporting agencies: This work was supported by the Russian Science Foundation (project No. 24–29–00786).
About the Authors
I. Stepanov
Quantum Information Laboratory, ITMO University
Russian Federation
Russian Federation
Ilia Stepanov
Kadetskaya Line, 3, St. Petersburg, 199034
R. Goncharov
Quantum Information Laboratory, ITMO University; Laboratory for Quantum Communications, ITMO University; SMARTS-Quanttelecom LLC
Russian Federation
Russian Federation
Roman Goncharov
Kadetskaya Line, 3, St. Petersburg, 199034
Birzhevaya Line, 16, Saint Petersburg, 199034
6th Vasilyevskogo Ostrova Line, 59, Saint Petersburg, 199178
A. D. Kiselev
Laboratory for Quantum Communications, ITMO University; Laboratory of Quantum Processes and Measurements, ITMO University
Russian Federation
Russian Federation
Alexei D. Kiselev
Birzhevaya Line, 16, Saint Petersburg, 199034
Kadetskaya Line 3b, Saint Petersburg 199034
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Review
For citations:
Stepanov I., Goncharov R., Kiselev A.D. Sub-Poissonian light in fluctuating thermal-loss bosonic channels. Nanosystems: Physics, Chemistry, Mathematics. 2025;16(3):333-342. https://doi.org/10.17586/2220-8054-2025-16-3-333-342
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