activity
19982026
most citedPhoton information efficiency limits in deep-space optical communications

14 citations · 25 across the 9 of their papers we have counts for

collaborators

10 papers

quant-ph2026

Machine Learning based Optimization of CV-QKD Under Practical Constraints

Svitlana Matsenko, Amirhossein Ghazisaeidi, Marcin Jarzyna +4

Practical hardware limitations, including finite transmitter and receiver filter lengths as well as the finite resolution of digital-to-analog and analog-to-digital converters, lea…

cs.IT2026

Optimization of CV-QKD Under Practical Constraints

Svitlana Matsenko, Amirhossein Ghazisaeidi, Marcin Jarzyna +2

Using reinforcement learning, we optimize for practical hardware constraints, including limited FIR filter taps at the transmitter and receiver, mean photon number and finite DAC/A…

physics.optics2025

Deep-Space Optical Communication Receiver Based on Single Photon Coherent Beam Combination

Antoni Mikos-Nuszkiewicz, Karol Łukanowski, Konrad Banaszek +1

We introduce an alternative receiver architecture for deep-space optical communication, in which a single large aperture is replaced by an array of smaller ones with outputs combin…

physics.optics2025★ 4 cited

Modeling Optical Key Distribution over a Satellite-to-Ground Link Under Weak Atmospheric Turbulence

Artur Czerwinski, Mikołaj Lasota, Marcin Jarzyna +3

In this study, we analyze the secret key capacity of intensity modulation/direct detection optical key distribution (IM/DD OKD) for a free-space optical (FSO) link between a low-Ea…

cs.IT2025

Mode Mismatch Mitigation in Gaussian-Modulated CV-QKD

Svitlana Matsenko, Amirhossein Ghazisaeidi, Marcin Jarzyna +4

Technical limitations in pulse shaping lead to mode mismatch, which significantly reduces the secure key rate in CV-QKD systems. To address this, a machine learning approach is emp…

physics.optics2025★ 1 cited

Simultaneous IM/DD Data Transmission and High-Rate Secret Key Distribution over a Single C-band Channel

Michal Jachura, Jakub Szlachetka, Mateusz Kucharczyk +4

We demonstrate hierarchical multiscale PAM-4 transmission combining 500 Mbps data transfer with optical-layer cryptographic key distribution at rates 24.14 Mbps and 8.38 Mbps secur…

quant-ph2025

Tx-Rx Mode Mismatch Effects in Gaussian-Modulated CV QKD

Mateusz Kucharczyk, Michal Jachura, Marcin Jarzyna +2

The impact of technical limitations on pulse shaping used to generate a CV QKD signal is quantified in terms of the attainable secure key rate. Optimization of key spectral efficie…

quant-ph2025★ 14 cited

Photon information efficiency limits in deep-space optical communications

M. Jarzyna, L. Kunz, W. Zwolinski +2

Deep-space optical communication links operate under severely limited signal power, approaching the photon-starved regime which requires a receiver capable of measuring individual…

quant-ph2024

Bayesian approach to coherent combination of single photon beams

Antoni Mikos-Nuszkiewicz, Jerzy Paczos, Konrad Banaszek +1

We theoretically investigate the performance of coherent beam combination of two light beams under relative phase fluctuations in the photon starved regime. We apply a first-princi…

quant-ph1998★ 6 cited

Statistical uncertainty in quantum optical photodetection measurements

Konrad Banaszek

We present a complete statistical analysis of quantum optical measurement schemes based on photodetection. Statistical distributions of quantum observables determined from a finite…