A quantum-enhanced search for dark matter axions
| Autor: | S. Al Kenany, A. Leder, Alex Droster, Sumita Ghosh, Sukhman Singh, Nicholas M. Rapidis, Samantha M. Lewis, Leila R. Vale, Gene C. Hilton, H. E. Jackson, Danielle Speller, B. M. Brubaker, Daniel Palken, Steve K. Lamoreaux, Maria Simanovskaia, E. C. van Assendelft, I. Urdinaran, Konrad Lehnert, K. van Bibber, Reina H. Maruyama, Maxime Malnou, Sidney Cahn, K. M. Backes, Hang Wang |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Particle physics Quantum Physics Multidisciplinary Uncertainty principle 010308 nuclear & particles physics Quantum limit Dark matter FOS: Physical sciences Observable 01 natural sciences High Energy Physics - Experiment High Energy Physics - Experiment (hep-ex) Quantum state 0103 physical sciences 010306 general physics Quantum Physics (quant-ph) Quantum Axion Squeezed coherent state |
| DOI: | 10.48550/arxiv.2008.01853 |
| Popis: | In dark matter axion searches, quantum uncertainty manifests as a fundamental noise source, limiting the measurement of the quadrature observables used for detection. We use vacuum squeezing to circumvent the quantum limit in a search for a new particle. By preparing a microwave-frequency electromagnetic field in a squeezed state and near-noiselessly reading out only the squeezed quadrature, we double the search rate for axions over a mass range favored by recent theoretical projections. We observe no signature of dark matter axions in the combined $16.96-17.12$ and $17.14-17.28\space\mu\text{eV}/c^2$ mass window for axion-photon couplings above $g_{\gamma} = 1.38\times g_{\gamma}^\text{KSVZ}$, reporting exclusion at the 90% level. Comment: 7 pages, 4 figures |
| Databáze: | OpenAIRE |
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