Generation of nonclassical narrowband photon pairs from a cold rubidium cloud

Young Wook Cho; Kwang Kyoon Park; Jong Chan Lee; Yoon Ho Kim

doi:10.3938/jkps.63.943

Generation of nonclassical narrowband photon pairs from a cold rubidium cloud

Young Wook Cho
, Kwang Kyoon Park
, Jong Chan Lee
, Yoon Ho Kim

Department of New Biology

Pohang University of Science and Technology

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

8 Scopus citations

Abstract

We report the generation of nonclassical narrowband photon pairs via the spontaneous four-wave mixing process in a cold Rubidium (⁸⁷Rb) cloud prepared in a magneto-optical trap. The generated photon pairs exhibit strong violation of the Cauchy-Schwarz inequality by a factor of 625 ± 45, confirming nonclassical correlation between the photons. The biphoton wave packets, measured for several different experimental conditions, are in good agreement with the theoretical results.

Original language	English
Pages (from-to)	943-950
Number of pages	8
Journal	Journal of the Korean Physical Society
Volume	63
Issue number	4
DOIs	https://doi.org/10.3938/jkps.63.943
State	Published - 2013

Bibliographical note

Funding Information:
We would like to thank Shengwang Du, Hoonsoo Kang, Jung-Bog Kim, Han-Seb Moon, Jianming Wen, and Hoon Yu for many fruitful discussions. This work was partially supported by the National Research Foundation of Korea (Grants No. 2011-0021452 and No. 2013R1A2A1A01006029). Y.-W. C. and J.-C. L. acknowledge support from the National Junior Research Fellowship (Grants No. 2011-0010895 and No. 2012-000741, respectively). K-K.P. acknowledges support from Global Ph. D. Fellowship by National Research Foundation of Korea (Grant No. 2011-0030856).

Keywords

Electromagnetically-induced transparency
Entangled photon pair
Spontaneous four-wave mixing

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10.3938/jkps.63.943

Cite this

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title = "Generation of nonclassical narrowband photon pairs from a cold rubidium cloud",

abstract = "We report the generation of nonclassical narrowband photon pairs via the spontaneous four-wave mixing process in a cold Rubidium (87Rb) cloud prepared in a magneto-optical trap. The generated photon pairs exhibit strong violation of the Cauchy-Schwarz inequality by a factor of 625 ± 45, confirming nonclassical correlation between the photons. The biphoton wave packets, measured for several different experimental conditions, are in good agreement with the theoretical results.",

keywords = "Electromagnetically-induced transparency, Entangled photon pair, Spontaneous four-wave mixing",

author = "Cho, \{Young Wook\} and Park, \{Kwang Kyoon\} and Lee, \{Jong Chan\} and Kim, \{Yoon Ho\}",

note = "Funding Information: We would like to thank Shengwang Du, Hoonsoo Kang, Jung-Bog Kim, Han-Seb Moon, Jianming Wen, and Hoon Yu for many fruitful discussions. This work was partially supported by the National Research Foundation of Korea (Grants No. 2011-0021452 and No. 2013R1A2A1A01006029). Y.-W. C. and J.-C. L. acknowledge support from the National Junior Research Fellowship (Grants No. 2011-0010895 and No. 2012-000741, respectively). K-K.P. acknowledges support from Global Ph. D. Fellowship by National Research Foundation of Korea (Grant No. 2011-0030856).",

year = "2013",

doi = "10.3938/jkps.63.943",

language = "English",

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AU - Cho, Young Wook

AU - Park, Kwang Kyoon

AU - Lee, Jong Chan

AU - Kim, Yoon Ho

N1 - Funding Information: We would like to thank Shengwang Du, Hoonsoo Kang, Jung-Bog Kim, Han-Seb Moon, Jianming Wen, and Hoon Yu for many fruitful discussions. This work was partially supported by the National Research Foundation of Korea (Grants No. 2011-0021452 and No. 2013R1A2A1A01006029). Y.-W. C. and J.-C. L. acknowledge support from the National Junior Research Fellowship (Grants No. 2011-0010895 and No. 2012-000741, respectively). K-K.P. acknowledges support from Global Ph. D. Fellowship by National Research Foundation of Korea (Grant No. 2011-0030856).

PY - 2013

Y1 - 2013

N2 - We report the generation of nonclassical narrowband photon pairs via the spontaneous four-wave mixing process in a cold Rubidium (87Rb) cloud prepared in a magneto-optical trap. The generated photon pairs exhibit strong violation of the Cauchy-Schwarz inequality by a factor of 625 ± 45, confirming nonclassical correlation between the photons. The biphoton wave packets, measured for several different experimental conditions, are in good agreement with the theoretical results.

AB - We report the generation of nonclassical narrowband photon pairs via the spontaneous four-wave mixing process in a cold Rubidium (87Rb) cloud prepared in a magneto-optical trap. The generated photon pairs exhibit strong violation of the Cauchy-Schwarz inequality by a factor of 625 ± 45, confirming nonclassical correlation between the photons. The biphoton wave packets, measured for several different experimental conditions, are in good agreement with the theoretical results.

KW - Electromagnetically-induced transparency

KW - Entangled photon pair

KW - Spontaneous four-wave mixing

UR - https://www.scopus.com/pages/publications/84892890804

U2 - 10.3938/jkps.63.943

DO - 10.3938/jkps.63.943

M3 - Article

AN - SCOPUS:84892890804

SN - 0374-4884

VL - 63

SP - 943

EP - 950

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 4

ER -

Generation of nonclassical narrowband photon pairs from a cold rubidium cloud

Abstract

Bibliographical note

Keywords

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