Non-Markovian enhancement of nonequilibrium quantum thermometry
Accurate measurement at low temperatures is essential for both gaining a fundamental
understanding of physical processes and develo** technological applications. In this …
understanding of physical processes and develo** technological applications. In this …
Ergotropy and capacity optimization in Heisenberg spin-chain quantum batteries
This study examines the performance of finite spin quantum batteries (QBs) using
Heisenberg XX, XY, XXZ, and XYZ spin models with Dzyaloshinsky-Moriya (DM) and Kaplan …
Heisenberg XX, XY, XXZ, and XYZ spin models with Dzyaloshinsky-Moriya (DM) and Kaplan …
Strict hierarchy of optimal strategies for global estimations: Linking global estimations with local ones
ZY Zhou, JT Qiu, DJ Zhang - Physical Review Research, 2024 - APS
A crucial yet challenging issue in quantum metrology is to ascertain the ultimate precision
achievable in estimation strategies. While there are two paradigms of estimations, local and …
achievable in estimation strategies. While there are two paradigms of estimations, local and …
Harnessing coherence generation for precision single-and two-qubit quantum thermometry
Quantum probes, such as single-and two-qubit probes, can accurately measure the
temperature of a bosonic bath. The current investigation assesses the precision of the …
temperature of a bosonic bath. The current investigation assesses the precision of the …
Bypassing thermalization timescales in temperature estimation using prethermal probes
We introduce prethermal temperature probes for sensitive, fast, and robust temperature
estimation. While equilibrium thermal probes with a manifold of quasidegenerate excited …
estimation. While equilibrium thermal probes with a manifold of quasidegenerate excited …
Achieving Heisenberg scaling by probe-ancilla interaction in quantum metrology
J Fan, S Pang - Physical Review A, 2024 - APS
The Heisenberg scaling is an ultimate precision limit of parameter estimation allowed by the
principles of quantum mechanics, with no counterpart in the classical realm, and has been a …
principles of quantum mechanics, with no counterpart in the classical realm, and has been a …
Mixing thermal coherent states for precision and range enhancement in quantum thermometry
The unavoidable interaction between thermal environments and quantum systems typically
leads to the degradation of quantum coherence, which can be fought against by reservoir …
leads to the degradation of quantum coherence, which can be fought against by reservoir …
Sequential-measurement thermometry with quantum many-body probes
Measuring the temperature of a quantum system is an essential task in almost all aspects of
quantum technologies. Theoretically, an optimal strategy for thermometry often requires …
quantum technologies. Theoretically, an optimal strategy for thermometry often requires …
Quantum sensing of ultralow temperature in biwire ultracold polar molecules
We present a systematic study of quantum sensing of ultralow temperature in biwire
ultracold polar molecules of a quasi-one-dimensional (1D) trap by exploring the dynamics of …
ultracold polar molecules of a quasi-one-dimensional (1D) trap by exploring the dynamics of …
Enhancing Gaussian quantum metrology with position-momentum correlations
Quantum metrology offers significant improvements in several quantum technologies. In this
work, we propose a Gaussian quantum metrology protocol assisted by initial position …
work, we propose a Gaussian quantum metrology protocol assisted by initial position …