Detecting the degree of macroscopic quantumness using an overlap measurement

Hyunseok Jeong; Changsuk Noh; Seunglee Bae; Dimitris G. Angelakis; Timothy C. Ralph

doi:10.1364/JOSAB.31.003057

Detecting the degree of macroscopic quantumness using an overlap measurement

Hyunseok Jeong
, Changsuk Noh
, Seunglee Bae
, Dimitris G. Angelakis
, Timothy C. Ralph

Seoul National University
National University of Singapore
Technical University of Crete
University of Queensland

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

We investigate how to experimentally detect a recently proposed measure to quantify macroscopic quantum superpositions [Phys. Rev. Lett. 106, 220401 (2011)], namely, "macroscopic quantumness" I. Schemes based on overlap measurements for harmonic oscillator states and for qubit states are extensively investigated. Effects of detection inefficiency and coarse-graining are analyzed in order to assess feasibility of the schemes.

Original language	English
Pages (from-to)	3057-3066
Number of pages	10
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	31
Issue number	12
DOIs	https://doi.org/10.1364/JOSAB.31.003057
State	Published - 1 Dec 2014

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10.1364/JOSAB.31.003057

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title = "Detecting the degree of macroscopic quantumness using an overlap measurement",

abstract = "We investigate how to experimentally detect a recently proposed measure to quantify macroscopic quantum superpositions [Phys. Rev. Lett. 106, 220401 (2011)], namely, {"}macroscopic quantumness{"} I. Schemes based on overlap measurements for harmonic oscillator states and for qubit states are extensively investigated. Effects of detection inefficiency and coarse-graining are analyzed in order to assess feasibility of the schemes.",

author = "Hyunseok Jeong and Changsuk Noh and Seunglee Bae and Angelakis, \{Dimitris G.\} and Ralph, \{Timothy C.\}",

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AU - Noh, Changsuk

AU - Bae, Seunglee

AU - Angelakis, Dimitris G.

AU - Ralph, Timothy C.

PY - 2014/12/1

Y1 - 2014/12/1

N2 - We investigate how to experimentally detect a recently proposed measure to quantify macroscopic quantum superpositions [Phys. Rev. Lett. 106, 220401 (2011)], namely, "macroscopic quantumness" I. Schemes based on overlap measurements for harmonic oscillator states and for qubit states are extensively investigated. Effects of detection inefficiency and coarse-graining are analyzed in order to assess feasibility of the schemes.

AB - We investigate how to experimentally detect a recently proposed measure to quantify macroscopic quantum superpositions [Phys. Rev. Lett. 106, 220401 (2011)], namely, "macroscopic quantumness" I. Schemes based on overlap measurements for harmonic oscillator states and for qubit states are extensively investigated. Effects of detection inefficiency and coarse-graining are analyzed in order to assess feasibility of the schemes.

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JO - Journal of the Optical Society of America B: Optical Physics

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Detecting the degree of macroscopic quantumness using an overlap measurement

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