Related papers: Search for Dark Photon Dark Matter of a Mass around $36.1\text{ }\mathrmμ\mathrm{eV}$ Using a Frequency-tunable Cavity Controlled through a Coupled Superconducting Qubit

Search for Dark Photon Dark Matter of a Mass around $36.1\text{ }\mathrmμ\mathrm{eV}$ Using a Frequency-tunable Cavity Controlled through a Coupled Superconducting Qubit

URL: http://arxiv.org/abs/2505.15619v1
Date: Wed, 21 May 2025 15:09:12 GMT
Title: Search for Dark Photon Dark Matter of a Mass around $36.1\text{ }\mathrmμ\mathrm{eV}$ Using a Frequency-tunable Cavity Controlled through a Coupled Superconducting Qubit
Authors: K. Nakazono, S. Chen, H. Fukuda, Y. Iiyama, T. Inada, T. Moroi, T. Nitta, A. Noguchi, R. Sawada, S. Shirai, T. Sichanugrist, K. Terashi, K. Watanabe,
Abstract summary: We report the results of a search for dark photon dark matter using a cavity that employs a transmon qubit as a frequency tuning component.<n>We exclude the dark photon parameter region for a dark photon mass around $36.1 mathrmmu eV $with a peak sensitivity of $chi sim 10-12$ over the mass range $[36.0791, 36.1765] mathrmmu eV$, surpassing the existing cosmological bounds.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We report the results of a search for dark photon dark matter using a cavity that employs a transmon qubit as a frequency tuning component. The tuning mechanism utilizes the energy level shift (Lamb shift) arising from the mode mixing between the qubit and the cavity mode. This method offers several advantages: (i) it does not introduce physical thermal noise from the tuning mechanism itself, (ii) it avoids electromagnetic leakage typically associated with cavity seams, and (iii) its implementation is straightforward. We excluded the dark photon parameter region for a dark photon mass around $36.1 \ \mathrm{\mu eV} $with a peak sensitivity of $\chi \sim 10^{-12}$ over the mass range $[36.0791, 36.1765] \ \mathrm{\mu eV}$, surpassing the existing cosmological bounds.

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