Entangled-photon interferometry for plasmas

• URL: http://arxiv.org/abs/2104.05386v2
• Date: Tue, 13 Apr 2021 01:11:22 GMT
• Title: Entangled-photon interferometry for plasmas
• Authors: Zhehui Wang and Yanhua Shih
• Abstract summary: Sub-picosecond coincidence timing from nonlocal intensity interference of entangled photons allows quantum interferometry for plasmas. We correlate phase measurement sensitivity with different plasma properties or physics mechanisms over 6 orders of magnitude.
• Score: 0.6167849162878746
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Sub-picosecond coincidence timing from nonlocal intensity interference of entangled photons allows quantum interferometry for plasmas. Using a warm plasma dispersion relation, we correlate phase measurement sensitivity with different plasma properties or physics mechanisms over 6 orders of magnitude. Due to $N^\alpha$ ($\alpha \leq -1/2$) scaling with the photon number $N$, quantum interferometry using entangled light can probe small signals in plasmas not previously accessible. As an example, it is predicted that plasmas will induce shifts to a Gaussian dip, a well-known quantum optics phenomenon that is yet to be demonstrated for plasmas.

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