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quant-ph2023
Quantum dynamic response-based NV-diamond magnetometry: Robustness to decoherence and applications in motion detection of magnetic nanoparticles
Wenkui Ding, Xingyu Zhang, Jing Liu +1
We propose a novel quantum sensing protocol that leverages the dynamical response of physical observables to quenches in quantum systems. Specifically, we use the nitrogen-vacancy…
quant-ph2015
Quantum information with conserved quantities
Jing Liu, Jing Cheng, Li-Bin Fu +1
Conserved quantities are crucial in quantum physics. Here we discuss a general scenario of Hamiltonians. All the Hamiltonians within this scenario share a common conserved quantity…