Quantum sensitivity limits of nuclear magnetic resonance experiments searching for new fundamental physics
| Autor: | Nataniel L. Figueroa, John W. Blanchard, Hendrik Bekker, Dmitry Budker, Derek F. Jackson Kimball, Gary P. Centers, Deniz Aybas, Alexander O. Sushkov, A. V. Gramolin, Arne Wickenbrock |
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| Rok vydání: | 2021 |
| Předmět: |
Physics - Instrumentation and Detectors
Physics and Astronomy (miscellaneous) Materials Science (miscellaneous) Dark matter FOS: Physical sciences 01 natural sciences Noise (electronics) 010305 fluids & plasmas Nuclear magnetic resonance High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences ddc:530 Sensitivity (control systems) Electrical and Electronic Engineering 010306 general physics Axion Quantum Electrical impedance Spin-½ Physics Quantum Physics Spins Instrumentation and Detectors (physics.ins-det) Atomic and Molecular Physics and Optics Condensed Matter - Other Condensed Matter High Energy Physics - Phenomenology Quantum Physics (quant-ph) Other Condensed Matter (cond-mat.other) |
| Zdroj: | Quantum science and technology 6(3), 034007 (2021). doi:10.1088/2058-9565/abfbbc Quantum Science and Technology |
| DOI: | 10.48550/arxiv.2103.06284 |
| Popis: | Nuclear magnetic resonance is a promising experimental approach to search for ultra-light axion-like dark matter. Searches such as the cosmic axion spin-precession experiments (CASPEr) are ultimately limited by quantum-mechanical noise sources, in particular, spin-projection noise. We discuss how such fundamental limits can potentially be reached. We consider a circuit model of a magnetic resonance experiment and quantify three noise sources: spin-projection noise, thermal noise, and amplifier noise. Calculation of the total noise spectrum takes into account the modification of the circuit impedance by the presence of nuclear spins, as well as the circuit back-action on the spin ensemble. Suppression of the circuit back-action is especially important in order for the spin-projection noise limits of searches for axion-like dark matter to reach the quantum chromodynamic axion sensitivity. |
| Databáze: | OpenAIRE |
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