Probing Dark Matter-Electron Interactions with Superconducting Qubits
- URL: http://arxiv.org/abs/2601.02474v1
- Date: Mon, 05 Jan 2026 19:00:02 GMT
- Title: Probing Dark Matter-Electron Interactions with Superconducting Qubits
- Authors: Yonit Hochberg, Majed Khalaf, Noah Kurinsky, Alessandro Lenoci, Rotem Ovadia,
- Abstract summary: Quantum device measurements are powerful tools to probe dark matter interactions.<n>Recent measurements of transmons have consistently measured, in various experimental setups, a residual contribution to the decoherence time unexplained by thermal noise or known external sources.<n>We use such measurements to set the most stringent laboratory-based constraints to date on dark matter-electron scattering at the keV scale and competitive constraints on dark photon absorption.
- Score: 36.94429692322632
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum device measurements are powerful tools to probe dark matter interactions. Among these, transmon qubits stand out for their ability to suppress external noise while remaining highly sensitive to tiny energy deposits. Ambient galactic halo dark matter interacting with electrons can deposit energy in the qubit, leading to changes in its decoherence time. Recent measurements of transmons have consistently measured, in various experimental setups, a residual contribution to the decoherence time unexplained by thermal noise or known external sources. We use such measurements to set the most stringent laboratory-based constraints to date on dark matter-electron scattering at the keV scale and competitive constraints on dark photon absorption.
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