Demonstration of wideband RF electric field sensing in a trapped ion via motional Raman transitions, achieving 3.4 dB below the standard quantum limit over a frequency range more than 800 times larger than prior QHO methods.
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Tuning parameters in a three-level open quantum battery near a Liouvillian exceptional point widens the spectral gap and speeds charging to the steady state without needing collective effects or persistent coherence.
Reports experimental measurement of RF signal frequency at 7e-9 fractional uncertainty using subharmonic excitation in a single Ca ion quantum harmonic oscillator, claimed as most precise with this platform.
citing papers explorer
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Quantum Vector Signal Analyzer: Wideband Electric Field Sensing via Motional Raman Transitions
Demonstration of wideband RF electric field sensing in a trapped ion via motional Raman transitions, achieving 3.4 dB below the standard quantum limit over a frequency range more than 800 times larger than prior QHO methods.
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Liouvillian spectral control for fast charging of quantum batteries
Tuning parameters in a three-level open quantum battery near a Liouvillian exceptional point widens the spectral gap and speeds charging to the steady state without needing collective effects or persistent coherence.
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Nonlinear-enhanced wideband sensing via subharmonic excitation of a quantum harmonic oscillator
Reports experimental measurement of RF signal frequency at 7e-9 fractional uncertainty using subharmonic excitation in a single Ca ion quantum harmonic oscillator, claimed as most precise with this platform.
- Experimental measurement of quantum first-passage-time distributions