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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.22336 |
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| _version_ | 1866910162317475840 |
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| author | Nakano, Wakutaka Takai, Ryoto |
| author_facet | Nakano, Wakutaka Takai, Ryoto |
| contents | We propose a quantum-enhanced sensing scheme for the detection of wave-like dark matter and high-frequency gravitational waves using two-dimensional ion crystals in a Penning trap. The protocol employs spin-motion squeezed states to improve the signal-to-noise ratio and enable a super-Heisenberg scaling with respect to the number of ions over a broad parameter range. We analyze the sensitivity of the protocol to representative wave-like dark matter candidates, including the axion-like particle and the dark photon, as well as to high-frequency gravitational waves, taking into account the decoherence and dephasing of the ion spins. Our results indicate that two-dimensional ion crystals and this new protocol provide a promising platform for probing previously unexplored parameter space in searches for light dark matter and high-frequency gravitational waves. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_22336 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Super-Heisenberg protocol for dark matter and high-frequency gravitational wave search Nakano, Wakutaka Takai, Ryoto High Energy Physics - Phenomenology General Relativity and Quantum Cosmology Atomic Physics Quantum Physics We propose a quantum-enhanced sensing scheme for the detection of wave-like dark matter and high-frequency gravitational waves using two-dimensional ion crystals in a Penning trap. The protocol employs spin-motion squeezed states to improve the signal-to-noise ratio and enable a super-Heisenberg scaling with respect to the number of ions over a broad parameter range. We analyze the sensitivity of the protocol to representative wave-like dark matter candidates, including the axion-like particle and the dark photon, as well as to high-frequency gravitational waves, taking into account the decoherence and dephasing of the ion spins. Our results indicate that two-dimensional ion crystals and this new protocol provide a promising platform for probing previously unexplored parameter space in searches for light dark matter and high-frequency gravitational waves. |
| title | Super-Heisenberg protocol for dark matter and high-frequency gravitational wave search |
| topic | High Energy Physics - Phenomenology General Relativity and Quantum Cosmology Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2604.22336 |