Demonstrating various quantum effects with two entangled laser beams

B. Hage; J. Janoušek; S. Armstrong; T. Symul; J. Bernu; H. M. Chrzanowski; P. K. Lam; H. A. Bachor

doi:10.1140/epjd/e2011-20153-9

Demonstrating various quantum effects with two entangled laser beams

B. Hage^*, J. Janoušek, S. Armstrong, T. Symul, J. Bernu, H. M. Chrzanowski, P. K. Lam, H. A. Bachor

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

We report on the preparation of entangled two mode squeezed states of yet unseen quality. Based on a measurement of the covariance matrix we found a violation of the Reid and Drummond EPR-criterion at a value of only 0.36 ± 0.03 compared to the threshold of 1. Furthermore, quantum state tomography was used to extract a single photon Fock state solely based on homodyne detection, demonstrating the strong quantum features of this pair of laser-beams. The probability for a single photon in this ensemble measurement exceeded 2/3.

Original language	English
Pages (from-to)	457-461
Number of pages	5
Journal	European Physical Journal D
Volume	63
Issue number	3
DOIs	https://doi.org/10.1140/epjd/e2011-20153-9
Publication status	Published - Aug 2011

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title = "Demonstrating various quantum effects with two entangled laser beams",

abstract = "We report on the preparation of entangled two mode squeezed states of yet unseen quality. Based on a measurement of the covariance matrix we found a violation of the Reid and Drummond EPR-criterion at a value of only 0.36 ± 0.03 compared to the threshold of 1. Furthermore, quantum state tomography was used to extract a single photon Fock state solely based on homodyne detection, demonstrating the strong quantum features of this pair of laser-beams. The probability for a single photon in this ensemble measurement exceeded 2/3.",

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AU - Hage, B.

AU - Janoušek, J.

AU - Armstrong, S.

AU - Symul, T.

AU - Bernu, J.

AU - Chrzanowski, H. M.

AU - Lam, P. K.

AU - Bachor, H. A.

PY - 2011/8

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N2 - We report on the preparation of entangled two mode squeezed states of yet unseen quality. Based on a measurement of the covariance matrix we found a violation of the Reid and Drummond EPR-criterion at a value of only 0.36 ± 0.03 compared to the threshold of 1. Furthermore, quantum state tomography was used to extract a single photon Fock state solely based on homodyne detection, demonstrating the strong quantum features of this pair of laser-beams. The probability for a single photon in this ensemble measurement exceeded 2/3.

AB - We report on the preparation of entangled two mode squeezed states of yet unseen quality. Based on a measurement of the covariance matrix we found a violation of the Reid and Drummond EPR-criterion at a value of only 0.36 ± 0.03 compared to the threshold of 1. Furthermore, quantum state tomography was used to extract a single photon Fock state solely based on homodyne detection, demonstrating the strong quantum features of this pair of laser-beams. The probability for a single photon in this ensemble measurement exceeded 2/3.

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JO - European Physical Journal D

JF - European Physical Journal D

IS - 3

ER -

Demonstrating various quantum effects with two entangled laser beams

Abstract

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