Emulation of quantum measurements with mixtures of coherent states

We propose a methodology to emulate quantum phenomena arising from any non-classical quantum state using only a finite set of mixtures of coherent states. This allows us to successfully reproduce well-known quantum effects using resources that can be much more feasibly generated in the laboratory. W...

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Bibliographic Details
Published in:arXiv.org 2022-05
Main Authors: Mikhalychev, A, Teo, Y S, Jeong, H, Stefanov, A, Mogilevtsev, D
Format: Article
Language:English
Subjects:
Bell's inequality
Coherence
Quantum phenomena
Online Access:Get full text
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Summary:We propose a methodology to emulate quantum phenomena arising from any non-classical quantum state using only a finite set of mixtures of coherent states. This allows us to successfully reproduce well-known quantum effects using resources that can be much more feasibly generated in the laboratory. We present a simple procedure to experimentally carry out quantum-state emulation with coherent states, illustrate it emulating multi-photon NOON states with few phase-averaged coherent states, and demonstrate its capabilities in observing fundamental quantum-mechanical effects, such as the Hong-Ou-Mandel effect, violating Bell inequalities and witnessing quantum non-classicality.
ISSN:2331-8422
DOI:10.48550/arxiv.2104.15014