9 papers
Quantum Decision Theory for Displacement Detection with Finite-Energy GKP States
Seid Koudia, Symeon Chatzinotas
We develop a quantum-decision-theoretic framework for detecting phase-space displacements with finite-energy, -level Gottesman-Kitaev-Preskill (GKP) probes. For single-mode and…
Measurement-Based Loss Tolerance in Graph-GKP Codes through Syndrome-Resolved Pauli-Frame Decoding
Seid Koudia, Symeon Chatzinotas
Graph codes offer multiple physical representatives of logical observables, while Gottesman-Kitaev-Preskill (GKP) codes retain analog information about bosonic displacement noise.…
A Slow-Time Receiver Interface for Turbulent Free-Space Quantum Polarization Links
Heyang Peng, Seid Koudia, Symeon Chatzinotas
Atmospheric turbulence makes free-space quantum polarization links intrinsically time varying, whereas receiver-side reduced interfaces are often treated as static. This paper deve…
Quantum MIMO Channel Modeling in Turbulent Free-Space Optical Links
Heyang Peng, Seid Koudia, Semih Oktay +2
Free-space optical (FSO) links supporting spatial multiplexing provide a natural physical realization of Quantum MIMO channels. We develop a first-principles model for Quantum MIMO…
Security Analysis of MDI-QKD in Turbulent Free-Space Polarization Channels-A Composite Channel Framework
Heyang Peng, Seid Koudia, Symeon Chatzinotas
Atmospheric turbulence poses a significant challenge to free-space measurement-device-independent quantum key distribution (FSO MDI-QKD) by inducing polarization decoherence and de…
Performance Analysis of MDI-QKD in Thermal-Loss and Phase Noise Channels
Heyang Peng, Seid Koudia, Leonardo Oleynik +1
Measurement-device-independent quantum key distribution (MDI-QKD), enhances quantum cryptography by mitigating detector-side vulnerabilities. This study analyzes MDI-QKD performanc…