Spin squeezing in spinor Bose-Einstein Condensate

Abstract

Abstract:

Spin squeezing is an important concept in quantum mechanics, which has recently been found closely related with the criteria of the entanglement in quantum information. In this paper, a theoretical scheme for generating spin squeezing state in spinor Bose-Einstein Condensate (SBEC) with a laser pulse was put forward. Using the single-mode approximation, we obtained the time-dependent wave function of SBEC, and then the analytical expressions of the squeezed angle and spin squeezing parameter. By investigating spin squeezing in SBEC, one see that the spin squeezed state with more squeezing can be generated by increasing coupling strength between laser pulse and the condensate.

Key words: Quantum Optics, Spin squeezing, Single-mode approximation, Spinor Bose-Einstein Condensate

CLC Number:

O431.2

LI Songsong. Spin squeezing in spinor Bose-Einstein Condensate[J]. J4, 2015, 32(5): 568-572.

[1]	CHEN Liying , HUANG Kun , WANG Qi , YAN Shinong . Design of an integrated vibration detection module based on diamond NV color centers [J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 500-509.
[2]	BAI Hailong , BAI Jinhai , HU Dong , WANG Yu . Design and implementation of a compact microwave synthesizer for atomic interference gravimeter [J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 510-518.
[3]	LI Songsong. Effects of three-body and four-body interactions on spin squeezing and quantum entanglement in Bose-Einstein condensates [J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 519-527.
[4]	LI Yan , . Correlation properties of Bose⁃Fermi mixture with one⁃dimensional strong interaction [J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 528-540.
[5]	WANG Sheng , FANG Xiaoming , LIN Yu , ZHANG Tianbing , FENG Bao , YU Yang , WANG Le . Four-intensity decoy-state phase-matching quantum key distribution [J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 541-545.
[6]	SUN Yishi , SUN Yi . Parameter prediction of classical-quantum signals co-fiber transmission system based on BP neural network [J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 546-559.
[7]	QI Zhiming , LIANG Wenyao . Influence of beam polarizations on holographic fabrication of compound photonic crystals [J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 447-457.
[8]	HE Yefeng , , LI Lina ∗ , BAI Qian , CHEN Sihao , QIANG Yuwei . Quantum key distribution of detector’s dead time in heralded single photon source [J]. Chinese Journal of Quantum Electronics, 2023, 40(1): 112-119.
[9]	TAN Zhijie , YANG Hairui , , YU Hong , , HAN Shensheng , ∗. Progress on X-ray diffraction imaging via intensity correlation [J]. Chinese Journal of Quantum Electronics, 2022, 39(6): 851-862.
[10]	LIN Huizu , ∗ , LIU Weitao , ∗ , SUN Shuai , , DU Longkun , , CHANG Chen , , LI Yuegang , . Progress of algorithms used in ghost imaging [J]. Chinese Journal of Quantum Electronics, 2022, 39(6): 863-879.
[11]	WANG Xiaoyan, WANG Zhiyuan, CHEN Ziyang, PU Jixioing ∗. Detection of orbital angular momentum of multiple vortices from speckle via deep learning [J]. Chinese Journal of Quantum Electronics, 2022, 39(6): 955-961.
[12]	LI Nengfei , SUN Yusong , , HUANG Jian , ∗. Research on cosine encoded multiplexing high spatial resolution ghost imaging [J]. Chinese Journal of Quantum Electronics, 2022, 39(6): 973-982.
[13]	DAI Pan, PANG Zhiguang, LI Jian, WANG Qin ∗. Nonlinear Bell inequality based on entanglement sources [J]. Chinese Journal of Quantum Electronics, 2022, 39(5): 761-767.
[14]	ZHOU Xiantao, JIANG Yinghua ∗ , GUO Chenfei, ZHAO Ning, LIU Biao. Quantum secure direct communication protocol based on mixture of GHZ particles and single photon [J]. Chinese Journal of Quantum Electronics, 2022, 39(5): 768-775.
[15]	LI Tianxiu, SHI Lei ∗ , WANG Junhui, LI Jiahao. Prediction of atmospheric attenuation coeﬃcient of quantum signal based on deep learning [J]. Chinese Journal of Quantum Electronics, 2022, 39(5): 786-794.

Spin squeezing in spinor Bose-Einstein Condensate

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments