Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity

Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity

Multiple photon subtraction applied to a displaced phase-averaged coherent state, which is a non-Gaussian classical state, produces conditional states with a non trivial (positive) Glauber-Sudarshan Prepresentation. We theoretically and experimentally demonstrate that, despite its simplicity, th...

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Main Authors: Olivares Stefano, Allevi Alessia, Bondani Maria
Format: Article
Language:English
Published: De Gruyter 2014-03-01
Series:Quantum Measurements and Quantum Metrology
Subjects:
photon statistics
photon detectors
quantum state characterization
state engineering
Online Access:https://doi.org/10.2478/qmetro-2014-0001
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spelling doaj-74655c7820ba44f7a9334f8f9f99bd262021-09-05T21:23:39ZengDe GruyterQuantum Measurements and Quantum Metrology 2299-114X2014-03-012110.2478/qmetro-2014-0001qmetro-2014-0001Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-GaussianityOlivares Stefano0Allevi Alessia1Bondani Maria2Dipartimento di Fisica, Università degli Studi di Milano and CNISM, U.d.R. Milano Statale, via Celoria 16, I-20133 Milano, ItalyDipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria and CNISM, U.d.R. Como, via Valleggio 11, I-22100 Como, ItalyIstituto di Fotonica e Nanotecnologie, Consiglio Nazionale delle Ricerche, and CNISM, U.d.R. Como, via Valleggio 11, I-22100 Como, ItalyMultiple photon subtraction applied to a displaced phase-averaged coherent state, which is a non-Gaussian classical state, produces conditional states with a non trivial (positive) Glauber-Sudarshan Prepresentation. We theoretically and experimentally demonstrate that, despite its simplicity, this class of conditional states cannot be fully characterized by direct detection of photon numbers. In particular, the non-Gaussianity of the state is a characteristics that must be assessed by phase-sensitive measurements. We also show that the non-Gaussianity of conditional states can be manipulated by choosing suitable conditioning values and composition of phase-averaged states.https://doi.org/10.2478/qmetro-2014-0001photon statisticsphoton detectorsquantum state characterization state engineering
collection DOAJ
language English
format Article
sources DOAJ
author Olivares Stefano
Allevi Alessia
Bondani Maria
spellingShingle Olivares Stefano
Allevi Alessia
Bondani Maria
Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity
Quantum Measurements and Quantum Metrology
photon statistics
photon detectors
quantum state characterization
state engineering
author_facet Olivares Stefano
Allevi Alessia
Bondani Maria
author_sort Olivares Stefano
title Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity
title_short Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity
title_full Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity
title_fullStr Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity
title_full_unstemmed Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity
title_sort gaussian and non-gaussian operations on non-gaussian state: engineering non-gaussianity
publisher De Gruyter
series Quantum Measurements and Quantum Metrology
issn 2299-114X
publishDate 2014-03-01
description Multiple photon subtraction applied to a displaced phase-averaged coherent state, which is a non-Gaussian classical state, produces conditional states with a non trivial (positive) Glauber-Sudarshan Prepresentation. We theoretically and experimentally demonstrate that, despite its simplicity, this class of conditional states cannot be fully characterized by direct detection of photon numbers. In particular, the non-Gaussianity of the state is a characteristics that must be assessed by phase-sensitive measurements. We also show that the non-Gaussianity of conditional states can be manipulated by choosing suitable conditioning values and composition of phase-averaged states.
topic photon statistics
photon detectors
quantum state characterization
state engineering
url https://doi.org/10.2478/qmetro-2014-0001
work_keys_str_mv AT olivaresstefano gaussianandnongaussianoperationsonnongaussianstateengineeringnongaussianity
AT allevialessia gaussianandnongaussianoperationsonnongaussianstateengineeringnongaussianity
AT bondanimaria gaussianandnongaussianoperationsonnongaussianstateengineeringnongaussianity
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