A protocol with two generalized measurements prepares versatile probe states from thermal qubits to enhance quantum Fisher information for decay rate and temperature estimation in amplitude damping channels, deriving an analytical link to thermodynamic susceptibilities and Hamiltonian variance valid
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Multi-frequency cooling in a 87Rb MOT doubles steady-state atom number to 10^10 and boosts loading rate to 1.3x10^11 atoms/s, with simulations predicting larger gains for bigger traps.
Hybrid ion-ensemble nodes match bandwidths to enable parallel probabilistic entanglement generation, yielding a conceptual speed-up for ion-ion entanglement over hundreds of kilometers.
The work extends a prior protocol to compare single-click and double-click entanglement generation between ions over hundreds of kilometers, showing that optimal choice depends on phase stability and interface efficiencies.
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Versatile probe state preparation via generalized measurements for quantum sensing and thermometry
A protocol with two generalized measurements prepares versatile probe states from thermal qubits to enhance quantum Fisher information for decay rate and temperature estimation in amplitude damping channels, deriving an analytical link to thermodynamic susceptibilities and Hamiltonian variance valid
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Enhanced Atom Capture via Multi-Frequency Magneto-Optical Trapping
Multi-frequency cooling in a 87Rb MOT doubles steady-state atom number to 10^10 and boosts loading rate to 1.3x10^11 atoms/s, with simulations predicting larger gains for bigger traps.
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Hybrid Single-Ion Atomic-Ensemble Node for High-Rate Remote Entanglement Generation
Hybrid ion-ensemble nodes match bandwidths to enable parallel probabilistic entanglement generation, yielding a conceptual speed-up for ion-ion entanglement over hundreds of kilometers.
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Single and Double-click High-Rate Entanglement Generation Between Distant Ions Using Multiplexed Atomic Ensembles
The work extends a prior protocol to compare single-click and double-click entanglement generation between ions over hundreds of kilometers, showing that optimal choice depends on phase stability and interface efficiencies.
- Journey in quantum metrology and sensing from foundations to applications: a review