Two-color laser modulation of magnetic Feshbach resonances

doi:10.1088/1674-1056/24/8/080308

中国物理B ›› 2015, Vol. 24 ›› Issue (8): 80308-080308.doi: 10.1088/1674-1056/24/8/080308

Two-color laser modulation of magnetic Feshbach resonances

李健, 刘勇, 黄寅, 丛书林

School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China

收稿日期:2014-12-08 修回日期:2015-03-05 出版日期:2015-08-05 发布日期:2015-08-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10974024 and 11274056).

Two-color laser modulation of magnetic Feshbach resonances

Li Jian (李健), Liu Yong (刘勇), Huang Yin (黄寅), Cong Shu-Lin (丛书林)

School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China

Received:2014-12-08 Revised:2015-03-05 Online:2015-08-05 Published:2015-08-05
Contact: Cong Shu-Lin E-mail:shlcong@dlut.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10974024 and 11274056).

摘要/Abstract

摘要： We investigate the two-color laser modulation of the magnetically induced Feshbach resonance. The two-color laser is nearly resonant with an optical bound-to-bound transition at the resonance position. The analytical formula of scattering length is obtained by solving the Heisenberg equation. The scattering length can be modified by changing the Rabi frequencies or optical field frequency. By choosing the suitable optical parameters, the two-body loss coefficient K₂ can be greatly reduced compared to the usual single optical scheme.

关键词: ultracold molecule, Feshbach resonance, two-body loss coefficient

Abstract: We investigate the two-color laser modulation of the magnetically induced Feshbach resonance. The two-color laser is nearly resonant with an optical bound-to-bound transition at the resonance position. The analytical formula of scattering length is obtained by solving the Heisenberg equation. The scattering length can be modified by changing the Rabi frequencies or optical field frequency. By choosing the suitable optical parameters, the two-body loss coefficient K₂ can be greatly reduced compared to the usual single optical scheme.

Key words: ultracold molecule, Feshbach resonance, two-body loss coefficient

中图分类号: (Other Bose-Einstein condensation phenomena)

03.75.Nt

42.65.Dr (Stimulated Raman scattering; CARS) 32.80.Qk (Coherent control of atomic interactions with photons)

李健, 刘勇, 黄寅, 丛书林. Two-color laser modulation of magnetic Feshbach resonances[J]. 中国物理B, 2015, 24(8): 80308-080308.

Li Jian (李健), Liu Yong (刘勇), Huang Yin (黄寅), Cong Shu-Lin (丛书林). Two-color laser modulation of magnetic Feshbach resonances[J]. Chin. Phys. B, 2015, 24(8): 80308-080308.

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Two-color laser modulation of magnetic Feshbach resonances

Two-color laser modulation of magnetic Feshbach resonances

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