A trapped ion in a spin-motion entangled state can detect kinetically mixed dark photon dark matter in the 10^{-15} to 10^{-14} eV mass range through Aharonov-Bohm phase shifts with parametrically enhanced sensitivity.
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A Ramsey-type array of N unentangled qubits can detect wave-like dark matter with coupling sensitivity δα ∼ 1/(T√N), rivaling entangled-qubit schemes.
A protocol using squeezed states in 2D ion crystals in a Penning trap achieves super-Heisenberg sensitivity for axion-like particles, dark photons, and high-frequency gravitational waves while accounting for decoherence.
The study calculates sensitivity of space- and Moon-based radio telescopes to resonant light dark matter conversion in solar system targets, finding encouraging prospects for dark photon searches with the Sun and axion-like particle conversion in Jupiter's magnetosphere.
citing papers explorer
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Ultralight dark matter detection with trapped-ion interferometry
A trapped ion in a spin-motion entangled state can detect kinetically mixed dark photon dark matter in the 10^{-15} to 10^{-14} eV mass range through Aharonov-Bohm phase shifts with parametrically enhanced sensitivity.
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Coherent collective response in many-qubit systems for dark matter detection
A Ramsey-type array of N unentangled qubits can detect wave-like dark matter with coupling sensitivity δα ∼ 1/(T√N), rivaling entangled-qubit schemes.
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Super-Heisenberg protocol for dark matter and high-frequency gravitational wave search
A protocol using squeezed states in 2D ion crystals in a Penning trap achieves super-Heisenberg sensitivity for axion-like particles, dark photons, and high-frequency gravitational waves while accounting for decoherence.
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Low-frequency radio telescopes sensitivity to light dark matter
The study calculates sensitivity of space- and Moon-based radio telescopes to resonant light dark matter conversion in solar system targets, finding encouraging prospects for dark photon searches with the Sun and axion-like particle conversion in Jupiter's magnetosphere.