Home > Research > Publications & Outputs > Distinguishing decoherence from alternative qua...

Electronic data

  • source1072015

    Rights statement: ©2015 American Physical Society

    Accepted author manuscript, 424 KB, PDF document

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

Links

Text available via DOI:

View graph of relations

Distinguishing decoherence from alternative quantum theories by dynamical decoupling

Research output: Contribution to journalJournal articlepeer-review

Published

Standard

Distinguishing decoherence from alternative quantum theories by dynamical decoupling. / Arenz, Christian; Hillier, Robin; Fraas, Martin; Burgarth, Daniel.

In: Physical review a, Vol. 92, No. 8, 022102, 08.2015.

Research output: Contribution to journalJournal articlepeer-review

Harvard

APA

Vancouver

Author

Arenz, Christian ; Hillier, Robin ; Fraas, Martin ; Burgarth, Daniel. / Distinguishing decoherence from alternative quantum theories by dynamical decoupling. In: Physical review a. 2015 ; Vol. 92, No. 8.

Bibtex

@article{ee8d1da7dcd84cfa8f76eb7d4cf93399,
title = "Distinguishing decoherence from alternative quantum theories by dynamical decoupling",
abstract = "A long-standing challenge in the foundations of quantum mechanics is the verification of alternative collapse theories despite their mathematical similarity to decoherence. To this end, we suggest a method based on dynamical decoupling. Experimental observation of nonzero saturation of the decoupling error in the limit of fast-decoupling operations can provide evidence for alternative quantum theories. The low decay rates predicted by collapse models are challenging, but high-fidelity measurements as well as recent advances in decoupling schemes for qubits let us explore a similar parameter regime to experiments based on macroscopic superpositions. As part of the analysis we prove that unbounded Hamiltonians can be perfectly decoupled. We demonstrate this on a dilation of a Lindbladian to a fully Hamiltonian model that induces exponential decay.",
author = "Christian Arenz and Robin Hillier and Martin Fraas and Daniel Burgarth",
note = " {\textcopyright}2015 American Physical Society",
year = "2015",
month = aug,
doi = "10.1103/PhysRevA.92.022102",
language = "English",
volume = "92",
journal = "Physical review a",
issn = "1050-2947",
publisher = "American Physical Society",
number = "8",

}

RIS

TY - JOUR

T1 - Distinguishing decoherence from alternative quantum theories by dynamical decoupling

AU - Arenz, Christian

AU - Hillier, Robin

AU - Fraas, Martin

AU - Burgarth, Daniel

N1 - ©2015 American Physical Society

PY - 2015/8

Y1 - 2015/8

N2 - A long-standing challenge in the foundations of quantum mechanics is the verification of alternative collapse theories despite their mathematical similarity to decoherence. To this end, we suggest a method based on dynamical decoupling. Experimental observation of nonzero saturation of the decoupling error in the limit of fast-decoupling operations can provide evidence for alternative quantum theories. The low decay rates predicted by collapse models are challenging, but high-fidelity measurements as well as recent advances in decoupling schemes for qubits let us explore a similar parameter regime to experiments based on macroscopic superpositions. As part of the analysis we prove that unbounded Hamiltonians can be perfectly decoupled. We demonstrate this on a dilation of a Lindbladian to a fully Hamiltonian model that induces exponential decay.

AB - A long-standing challenge in the foundations of quantum mechanics is the verification of alternative collapse theories despite their mathematical similarity to decoherence. To this end, we suggest a method based on dynamical decoupling. Experimental observation of nonzero saturation of the decoupling error in the limit of fast-decoupling operations can provide evidence for alternative quantum theories. The low decay rates predicted by collapse models are challenging, but high-fidelity measurements as well as recent advances in decoupling schemes for qubits let us explore a similar parameter regime to experiments based on macroscopic superpositions. As part of the analysis we prove that unbounded Hamiltonians can be perfectly decoupled. We demonstrate this on a dilation of a Lindbladian to a fully Hamiltonian model that induces exponential decay.

U2 - 10.1103/PhysRevA.92.022102

DO - 10.1103/PhysRevA.92.022102

M3 - Journal article

VL - 92

JO - Physical review a

JF - Physical review a

SN - 1050-2947

IS - 8

M1 - 022102

ER -