Relative entropy of coherence quantifies performance in Bayesian metrology
The ability of quantum states to be in superposition is one of the key features that sets them
apart from the classical world. This “coherence” is rigorously quantified by resource theories …
apart from the classical world. This “coherence” is rigorously quantified by resource theories …
Measuring the quadrature coherence scale on a cloud quantum computer
Coherence underlies quantum phenomena, yet it is manifest in classical theories;
delineating coherence's role is a fickle business. The quadrature coherence scale (QCS) …
delineating coherence's role is a fickle business. The quadrature coherence scale (QCS) …
Clock–work trade-off relation for coherence in quantum thermodynamics
In thermodynamics, quantum coherences—superpositions between energy eigenstates—
behave in distinctly nonclassical ways. Here we describe how thermodynamic coherence …
behave in distinctly nonclassical ways. Here we describe how thermodynamic coherence …
Family of coherence measures and duality between quantum coherence and path distinguishability
C **ong, A Kumar, J Wu - Physical Review A, 2018 - APS
Coherence measures and their operational interpretations lay the cornerstone of coherence
theory. In this paper, we introduce a class of coherence measures with α affinity, say α …
theory. In this paper, we introduce a class of coherence measures with α affinity, say α …
Entanglement as the symmetric portion of correlated coherence
We show that the symmetric portion of correlated coherence is always a valid quantifier of
entanglement, and that this property is independent of the particular choice of coherence …
entanglement, and that this property is independent of the particular choice of coherence …
[HTML][HTML] Average versus maximal coherence
Coherence is a fundamental feature of quantum mechanics and plays a crucial role in the
quantum realm. The issue of quantification of coherence has received considerable interests …
quantum realm. The issue of quantification of coherence has received considerable interests …
Quadrature coherence scale driven fast decoherence of bosonic quantum field states
A Hertz, S De Bièvre - Physical Review Letters, 2020 - APS
We introduce, for each state of a bosonic quantum field, its quadrature coherence scale
(QCS), a measure of the range of its quadrature coherences. Under coupling to a thermal …
(QCS), a measure of the range of its quadrature coherences. Under coupling to a thermal …
Quantum asymmetry and noisy multimode interferometry
Quantum asymmetry is a physical resource that coincides with the amount of coherence
between the eigenspaces of a generator responsible for phase encoding in interferometric …
between the eigenspaces of a generator responsible for phase encoding in interferometric …
Uncertainty relations for coherence
Quantum mechanical uncertainty relations are fundamental consequences of the
incompatible nature of noncommuting observables. In terms of the coherence measure …
incompatible nature of noncommuting observables. In terms of the coherence measure …
From asymmetry to correlations
Symmetry, as well as the dual concept of asymmetry, are essential, powerful and ubiquitous
in physics and nature. Motivated by the original Wigner-Yanase skew information and its …
in physics and nature. Motivated by the original Wigner-Yanase skew information and its …