312 citations · 5.2k across the 88 of their papers we have counts for
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Classical-noise-free sensing based on quantum correlation measurement
Ping Wang, Chong Chen, Renbao Liu
Quantum sensing, using quantum properties of sensors, can enhance resolution, precision, and sensitivity of imaging, spectroscopy, and detection. An intriguing question is: Can the…
Berry phases of higher spins due to internal geometry of Majorana constellation and relation to quantum entanglement
Chon-Fai Kam, Ren-Bao Liu
Majorana stars, the antipodal directions associated with the coherent states that are orthogonal to a spin state, provide a visualization and a geometric understanding of the struc…
Effects of local decoherence on quantum critical metrology
Chong Chen, Ping Wang, Ren-Bao Liu
The diverging responses to parameter variations of systems at quantum critical points motivate schemes of quantum metrology that feature sub-Heisenberg scaling of the sensitivity w…
Cluster-correlation expansion for studying decoherence of clock transitions in spin baths
Geng-Li Zhang, Wen-Long Ma, Ren-Bao Liu
The clock transitions (CTs) of central spins have long coherence times because their frequency fluctuations vanish in the linear order of external field noise (such as Overhauser f…
Hyperfine spectroscopy in a quantum-limited spectrometer
S. Probst, G. L. Zhang, M. Rančić +12
We report measurements of electron spin echo envelope modulation (ESEEM) performed at millikelvin temperatures in a custom-built high-sensitivity spectrometer based on superconduct…