Search Results for author: Ren-Bao Liu

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Effects of local decoherence on quantum critical metrology

no code implementations11 Aug 2020 Chong Chen, Ping Wang, Ren-Bao Liu

94, 047201 (2005)] on the critical behaviors of the noisy Ising model, which shows that the universality class of the quantum criticality is modified by the decoherence, we find that the standard quantum limit is recovered by the single-particle decoherence, which is equivalent to local quantum measurement conducted by the environment and destroys the many-body entanglement in the ground state at the quantum critical point.

Quantum Physics

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