A comprehensive perspective for single-mode Gaussian coherence

SK Singh, A ur Rahman, M Mazaheri, JX Peng - Physica Scripta, 2024 - iopscience.iop.org
In this work, we theoretically investigate single-mode Gaussian quantum coherence from a
comprehensive perspective. Based on analytical expressions of the first and second …

Measuring coherence of quantum measurements

V Cimini, I Gianani, M Sbroscia, J Sperling… - Physical Review …, 2019 - APS
The superposition of quantum states lies at the heart of physics and has been recently found
to serve as a versatile resource for quantum information protocols, defining the notion of …

State convertibility under genuinely incoherent operations

Z Bai, S Du - arXiv preprint arXiv:2408.02885, 2024 - arxiv.org
State convertibility is fundamental in the study of resource theory of quantum coherence. It is
aimed at identifying when it is possible to convert a given coherent state to another using …

Inevitable degradation and inconsistency of quantum coherence in a curved space-time

J Shi, J Chen, J He, T Wu, L Ye - Quantum Information Processing, 2019 - Springer
Based on dynamic analyses on bipartition system, the frozen conditions and the
inconsistency of quantum coherence are investigated when one qubit of initial state located …

Generalized coherence vector applied to coherence transformations and quantifiers

GM Bosyk, M Losada, C Massri, H Freytes, G Sergioli - Physical Review A, 2021 - APS
One of the main problems in any quantum resource theory is the characterization of the
conversions between resources by means of the free operations of the theory. In this work …

Quantum coherences of indistinguishable particles

J Sperling, A Perez-Leija, K Busch, IA Walmsley - Physical Review A, 2017 - APS
We study different notions of quantum correlations in multipartite systems of distinguishable
and indistinguishable particles. Based on the definition of quantum coherence for a single …

Amount of quantum coherence needed for measurement incompatibility

J Kiukas, D McNulty, JP Pellonpää - Physical Review A, 2022 - APS
A pair of quantum observables diagonal in the same “incoherent” basis can be measured
jointly, so some coherence is obviously required for measurement incompatibility. Here we …

Detector entanglement: Quasidistributions for Bell-state measurements

J Sperling, I Gianani, M Barbieri, E Agudelo - Physical Review A, 2023 - APS
Measurements in the quantum domain can exceed classical notions. This concerns
fundamental questions about the nature of the measurement process itself, as well as …

Coherence quantifiers from the viewpoint of their decreases in the measurement process

AE Rastegin - Journal of Physics A: Mathematical and …, 2018 - iopscience.iop.org
Measurements can be considered as a genuine example of processes that crush quantum
coherence. In the case of an observable with degeneracy, the formulations of Lüders and …

Quantum coherence fraction

Y Yao, D Li, CP Sun - Physical Review A, 2019 - APS
As an analogy of the fully entangled fraction in the framework of entanglement theory, we
have introduced the notion of quantum coherence fraction CF, which quantifies the …