Assessments of macroscopicity for quantum optical states

Amine Laghaout; Jonas Schou Neergaard-Nielsen; Ulrik Lund Andersen

doi:10.1016/j.optcom.2014.07.046

Assessments of macroscopicity for quantum optical states

Amine Laghaout, Jonas Schou Neergaard-Nielsen, Ulrik Lund Andersen

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

With the slow but constant progress in the coherent control of quantum systems, it is now possible to create large quantum superpositions. There has therefore been an increased interest in quantifying any claims of macroscopicity. We attempt here to motivate three criteria which we believe should enter in the assessment of macroscopic quantumness: The number of quantum fluctuation photons, the purity of the states, and the ease with which the branches making up the state can be distinguished. © 2014.

Original language	English
Journal	Optics Communications
Volume	337
Pages (from-to)	96-101
ISSN	0030-4018
DOIs	https://doi.org/10.1016/j.optcom.2014.07.046
Publication status	Published - 2015

Keywords

Distinguishability
Macroscopicity
Measure

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10.1016/j.optcom.2014.07.046

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abstract = "With the slow but constant progress in the coherent control of quantum systems, it is now possible to create large quantum superpositions. There has therefore been an increased interest in quantifying any claims of macroscopicity. We attempt here to motivate three criteria which we believe should enter in the assessment of macroscopic quantumness: The number of quantum fluctuation photons, the purity of the states, and the ease with which the branches making up the state can be distinguished. {\textcopyright} 2014.",

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AU - Neergaard-Nielsen, Jonas Schou

AU - Andersen, Ulrik Lund

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AB - With the slow but constant progress in the coherent control of quantum systems, it is now possible to create large quantum superpositions. There has therefore been an increased interest in quantifying any claims of macroscopicity. We attempt here to motivate three criteria which we believe should enter in the assessment of macroscopic quantumness: The number of quantum fluctuation photons, the purity of the states, and the ease with which the branches making up the state can be distinguished. © 2014.

KW - Distinguishability

KW - Macroscopicity

KW - Measure

U2 - 10.1016/j.optcom.2014.07.046

DO - 10.1016/j.optcom.2014.07.046

M3 - Journal article

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VL - 337

SP - 96

EP - 101

JO - Optics Communications

JF - Optics Communications

ER -

Assessments of macroscopicity for quantum optical states

Abstract

Keywords

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