Experimental demonstrations for randomness-based macroscopic
Franson-type nonlocal correlation using coherently coupled photons
- URL: http://arxiv.org/abs/2107.00302v1
- Date: Thu, 1 Jul 2021 08:41:50 GMT
- Title: Experimental demonstrations for randomness-based macroscopic
Franson-type nonlocal correlation using coherently coupled photons
- Authors: S. Kim and B. S. Ham
- Abstract summary: Coherence theory of deterministic quantum features applied to Franson-type nonlocal correlation.
modified Franson-type nonlocal correlation successfully demonstrates the proposed wave nature of quantum mechanics.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Franson-type nonlocal quantum correlation based on the particle nature of
quantum mechanics has been intensively studied for both fundamental physics and
potential applications of quantum key distribution between remotely separated
parties over the last several decades. Recently, a coherence theory of
deterministic quantum features has been applied for Franson-type nonlocal
correlation [arXiv:2102.06463] to understand its quantumness in a purely
classical manner, where the resulting features are deterministic and
macroscopic. Here, nearly sub-Poisson distributed coherent photon pairs
obtained from an attenuated laser are used for the experimental demonstrations
of the coherence Franson-type nonlocal correlation. As an essential requirement
of quantum mechanics, quantum superposition is macroscopically provided using
polarization basis-randomness via a half-wave plate, satisfying fairness
compared with the original scheme based on phase bases. The observed coherence
quantum feature of the modified Franson correlation successfully demonstrates
the proposed wave nature of quantum mechanics, where the unveiled nonlocal
correlation is relied on a definite phase relation between the paired coherent
photons.
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