Home > Research > Publications & Outputs > Symmetry Constrained Decoherence of Conditional...

Links

Text available via DOI:

View graph of relations

Symmetry Constrained Decoherence of Conditional Expectation Values

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published

Standard

Symmetry Constrained Decoherence of Conditional Expectation Values. / Mohammady, M. Hamed; Romito, Alessandro.
In: Universe, Vol. 5, No. 2, 46, 24.01.2019.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

APA

Vancouver

Mohammady MH, Romito A. Symmetry Constrained Decoherence of Conditional Expectation Values. Universe. 2019 Jan 24;5(2):46. doi: 10.3390/universe5020046

Author

Bibtex

@article{835f9dee8afa45c9b23e79b8d2229318,
title = "Symmetry Constrained Decoherence of Conditional Expectation Values",
abstract = "Conditional expectation values of quantum mechanical observables reflect unique non-classical correlations, and are generally sensitive to decoherence. We consider the circumstances under which such sensitivity to decoherence is removed, namely, when the measurement process is subjected to conservation laws. Specifically, we address systems with additive conserved quantities and identify sufficient conditions for the system state such that its coherence plays no role in the conditional expectation values of observables that commute with the conserved quantity. We discuss our findings for a specific model where the system-detector coupling is given by the Jaynes-Cummings interaction, which is relevant to experiments tracking trajectories of qubits in cavities. Our results clarify, among others, the role of coherence in thermal measurements in current architectures for quantum thermodynamics experiments",
author = "Mohammady, {M. Hamed} and Alessandro Romito",
year = "2019",
month = jan,
day = "24",
doi = "10.3390/universe5020046",
language = "English",
volume = "5",
journal = "Universe",
number = "2",

}

RIS

TY - JOUR

T1 - Symmetry Constrained Decoherence of Conditional Expectation Values

AU - Mohammady, M. Hamed

AU - Romito, Alessandro

PY - 2019/1/24

Y1 - 2019/1/24

N2 - Conditional expectation values of quantum mechanical observables reflect unique non-classical correlations, and are generally sensitive to decoherence. We consider the circumstances under which such sensitivity to decoherence is removed, namely, when the measurement process is subjected to conservation laws. Specifically, we address systems with additive conserved quantities and identify sufficient conditions for the system state such that its coherence plays no role in the conditional expectation values of observables that commute with the conserved quantity. We discuss our findings for a specific model where the system-detector coupling is given by the Jaynes-Cummings interaction, which is relevant to experiments tracking trajectories of qubits in cavities. Our results clarify, among others, the role of coherence in thermal measurements in current architectures for quantum thermodynamics experiments

AB - Conditional expectation values of quantum mechanical observables reflect unique non-classical correlations, and are generally sensitive to decoherence. We consider the circumstances under which such sensitivity to decoherence is removed, namely, when the measurement process is subjected to conservation laws. Specifically, we address systems with additive conserved quantities and identify sufficient conditions for the system state such that its coherence plays no role in the conditional expectation values of observables that commute with the conserved quantity. We discuss our findings for a specific model where the system-detector coupling is given by the Jaynes-Cummings interaction, which is relevant to experiments tracking trajectories of qubits in cavities. Our results clarify, among others, the role of coherence in thermal measurements in current architectures for quantum thermodynamics experiments

U2 - 10.3390/universe5020046

DO - 10.3390/universe5020046

M3 - Journal article

VL - 5

JO - Universe

JF - Universe

IS - 2

M1 - 46

ER -