Quantum bath statistics tagging
arXiv:1907.04704 · doi:10.1103/PhysRevA.100.042327
Abstract
The possibility of discriminating the statistics of a thermal bath using indirect measurements performed on quantum probes is presented. The scheme relies on the fact that, when weakly coupled with the environment of interest, the transient evolution of the probe toward its final thermal configuration, is strongly affected by the fermionic or bosonic nature of the bath excitations. Using figures of merit taken from quantum metrology such as the Holevo-Helstrom probability of error and the Quantum Chernoff bound, we discuss how to achieve the greatest precision in this statistics tagging procedure, analyzing different models of probes and different initial preparations and by optimizing over the time of exposure of the probe.
References in corpus (27)
- Advances in Quantum Metrology
- Gaussian Quantum Information
- Quantum metrology
- Quantum Computers and Dissipation
- Continuous variable quantum information: Gaussian states and beyond
- The Quantum Chernoff Bound
- Theory of the spin bath
- Quantum optics in the phase space - A tutorial on Gaussian states
- Nuclear spin physics in quantum dots: an optical investigation
- Individual quantum probes for optimal thermometry
- Charger-mediated energy transfer for quantum batteries: an open system approach
- Charger-mediated energy transfer in exactly-solvable models for quantum batteries
- Observation of non-Markovian micro-mechanical Brownian motion
- Entanglement of two-mode Gaussian states: characterization and experimental production and manipulation
- Computable bounds for the discrimination of Gaussian states
- The quantum Chernoff bound as a measure of distinguishability between density matrices: application to qubit and Gaussian states
- Exact dynamics in the inhomogeneous central-spin model
- Local quantum thermal susceptibility
- Open Quantum System Dynamics: recovering positivity of the Redfield equation via Partial-Secular Approximation
- Quantum probes for the cutoff frequency of Ohmic environments
- Bridging thermodynamics and metrology in non-equilibrium Quantum Thermometry
- Decoherence and dissipation of a quantum harmonic oscillator coupled to two-level systems
- A dynamical approach to ancilla assisted quantum thermometry
- Optimal work extraction from quantum states by photo-assisted Cooper pair tunneling
- Quantum Probes for Ohmic Environments at Thermal Equilibrium
- Finite size bath in qubit thermodynamics
- Signatures of long-range spin-spin interactions in an (In,Ga)As quantum dot ensemble