Squeezed microwaves recover magnetic-field information lost during qubit readout, improving superconducting-qubit magnetometer sensitivity by 27.3% through suppressed state-assignment errors in the measurement stage.
@informaq.bsky.social
@informaq.bsky.socialSqueezed microwaves recover magnetic-field information lost during qubit readout, improving superconducting-qubit magnetometer sensitivity by 27.3% through suppressed state-assignment errors in the measurement stage.
@informaq.bsky.socialNV-center quantum sensors combined with digital lock-in amplification achieve 126 nT/Hz^1/2 magnetic field sensitivity and sub-second full-field imaging, enabling rapid non-destructive testing and fault diagnosis of RF devices.
@informaq.bsky.socialFloquet eigenstate analysis reveals how RF-driven Rydberg atoms undergo state mixing and coupling, explaining avoided crossing structures through detailed examination of dressed-state dynamics and intermediate coupling pathways.
@markeatherly.bsky.socialTime-Reversal and Reversible Dynamics in Cavity QED for Quantum Metrology
Quantum-enhanced metrology relies on entanglement to achieve sensitivities beyond the standard quantum limit.
@markeatherly.bsky.socialHacking measurement-device-independent quantum key distribution
The security of practical quantum key distribution (QKD) systems is fundamentally constrained by vulnerabilities of single-photon detectors.
@informaq.bsky.socialNovel theoretical framework explains polarization transfer efficiency in xenon isotope hyperpolarization. 129Xe achieves ~7x greater polarization than 131Xe due to spin quantum number and gyromagnetic ratio differences—validated by multiscale simulations.
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@markeatherly.bsky.socialPasqal and Aeponyx Found Canadian Center of Competency at C2MI to Commercialize Photonic Integrated Circuit Packaging
@danielkhent.bsky.socialA quantum gravity sensor navigated a ship for 56 hours with no GPS, fixing position by matching tiny local dips in Earth's gravity against a pre-made map. #QuantumSensing #Navigation #GPS https://spectrum.ieee.org/quantum-gravity-sensor
@markeatherly.bsky.socialOptimal Stabilizer Testing and Learning with Limited Quantum Memory
We study stabilizer state testing and learning with limited coherent quantum memory.
@informaq.bsky.socialBoron vacancy qubits in hBN achieve 3.3× enhanced coherence time in monolayers versus bulk crystals (653 ns vs 199 ns). Layer number emerges as a tunable design parameter for van der Waals quantum sensing applications.
@informaq.bsky.socialVacuum Rabi oscillations generate spin squeezing through geometric focusing on the Bloch sphere, achieving N^-1/3 scaling and enabling 15 dB squeezing in cavity-coupled ¹⁷¹Yb atoms for precision quantum sensing.
@breezeinbusan.bsky.socialSouth Korea has assigned quantum sensing to Busan, Ulsan and South Gyeongsang. In Busan, a battery-inspection project is already showing what it takes to move quantum sensing beyond the lab.
breezeinflow.com/busan-news/b...
#Busan #QuantumSensing #DeepTech #BatteryTech