Optimal Discrimination of Gaussian States by Gaussian Measurements

arXiv:2603.12182 · quant-ph · Submitted 2026-03-12 · Read on arXiv

quant-ph

Submitted: 2026-03-12

Updated: 2026-09-24

Comments: 7 pages, 1 figure. v2: operational interpretation added

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Entanglement — 9× in this paper · explained in 3 episodes
• Fidelity — 5× in this paper · explained in 2 episodes
• Trace — 5× in this paper · explained in 2 episodes
• Distillation — 3× in this paper · explained in 2 episodes
• Robustness — 3× in this paper · explained in 5 episodes
• Wigner function — 2× in this paper · explained in 2 episodes
• Generalization — 1× in this paper · explained in 13 episodes
• No-Go Theorem — 1× in this paper · explained in 2 episodes
• Trace Distance — 1× in this paper · explained in 3 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• Efficient Quantum Measurements: Computational Max- and Measured R'enyi Divergences and Applications
• Computational relative entropy
• Computational Entanglement Theory
• Fully Quantum Computational Entropies
• Computational Notions of Quantum Min-Entropy
• All-Gaussian State Discrimination Beyond the Coherent Helstrom Bound
• Bosonic data hiding: power of linear vs non-linear optics
• Gaussian quantum data hiding

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