Direct use of mechanical qubits from levitated particles for gravimetry achieves m^{-1/2} sensitivity scaling and 0.1 μGal/√Hz performance, outperforming traditional schemes by two orders of magnitude while reaching double standard quantum limits.
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A new optimization-based protocol estimates quantum coherence from scarce data with system-size-independent cost and is experimentally demonstrated.
A protocol generates loss-robust crossband entanglement by leveraging intraband entanglement, exceeding direct-transduction limits with performance scaling with input brightness.
Tighter quantum-memory-assisted entropic uncertainty bounds for complete sets of mutually unbiased bases in multipartite scenarios.
citing papers explorer
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Quantum gravimetry with mechanical qubits
Direct use of mechanical qubits from levitated particles for gravimetry achieves m^{-1/2} sensitivity scaling and 0.1 μGal/√Hz performance, outperforming traditional schemes by two orders of magnitude while reaching double standard quantum limits.
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Scalable protocol to coherence estimation from scarce data: Theory and experiment
A new optimization-based protocol estimates quantum coherence from scarce data with system-size-independent cost and is experimentally demonstrated.
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Loss-robust crossband entanglement generation beyond the direct-transduction limit
A protocol generates loss-robust crossband entanglement by leveraging intraband entanglement, exceeding direct-transduction limits with performance scaling with input brightness.
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Tighter entropic uncertainty relations in the presence of quantum memories for complete sets of mutually unbiased bases
Tighter quantum-memory-assisted entropic uncertainty bounds for complete sets of mutually unbiased bases in multipartite scenarios.