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quant-ph2024★ 4 cited
Coherence-enhanced single-qubit thermometry out of equilibrium
Gonçalo Frazao, Marco Pezzutto, Yasser Omar +2
The metrological limits of thermometry operated in nonequilibrium dynamical regimes are analyzed. We consider a finite-dimensional quantum system, employed as a quantum thermometer…
quant-ph2017★ 13 cited
Quantum Measurements, Energy Conservation and Quantum Clocks
Nicolas Gisin, Emmanuel Zambrini Cruzeiro
We consider a spin chain extending from Alice to Bob with next neighbors interactions, initially in its ground state. Assuming that Bob measures the last spin of the chain, the ene…