Quantum dual-path interferometry scheme for axion dark matter searches

• URL: http://arxiv.org/abs/2201.08291v5
• Date: Mon, 19 Aug 2024 05:04:51 GMT
• Title: Quantum dual-path interferometry scheme for axion dark matter searches
• Authors: Qiaoli Yang, Yu Gao, Zhihui Peng,
• Abstract summary: We show that in a cavity permeated by a magnetic field, the single axion-photon conversion rate is enhanced by the cavity quality factor. The axion cavity can be considered a quantum device emitting single photons with temporal separations.
• Score: 1.0636475069923585
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Exploring the mysterious dark matter is a key quest in modern physics. Currently, detecting axions, a hypothetical particle proposed as a primary component of dark matter, remains a significant challenge due to their weakly interacting nature. Here we show at quantum level that in a cavity permeated by a magnetic field, the single axion-photon conversion rate is enhanced by the cavity quality factor and is quantitatively larger than the classical result by $\pi/2$. The axion cavity can be considered a quantum device emitting single photons with temporal separations. This differs from the classical picture and reveals a possibility for the axion cavity experiment to handle the signal sensitivity at the quantum level, e.g., a dual path quantum interferometry with cross-power and second-order correlation measurements. This scheme would greatly reduce the signal scanning time and improve the sensitivity of the axion-photon coupling, potentially leading to the direct observation of axions.

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