Tuning a magnetic Feshbach resonance with spatially modulated laser light

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	Tuning a magnetic Feshbach resonance with spatially modulated laser light
	Zhang, YC ; Liu, WM ; Hu, H
刊名	PHYSICAL REVIEW A
	2014
卷号	90 期号:5
ISSN号	1050-2947
通讯作者	Zhang, YC (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	We theoretically investigate the control of a magnetic Feshbach resonance using a bound-to-bound molecular transition driven by spatially modulated laser light. Due to the spatially periodic coupling between the ground and excited molecular states, there exists a band structure of bound states, which can uniquely be characterized by some extra bumps in radio-frequency spectroscopy. With the increasing of coupling strength, the series of bound states will cross zero energy and directly result in a number of scattering resonances, whose position and width can be conveniently tuned by the coupling strength of the laser light and the applied magnetic field (i.e., the detuning of the ground molecular state). In the presence of the modulated laser light, universal two-body bound states near zero-energy threshold still exist. However, compared with the case without modulation, the regime for such universal states is usually small. A unified formula, which embodies the influence of the modulated coupling on the resonance width is given. The spatially modulated coupling also implies a local spatially varying interaction between atoms. Our work proposes a practical way of optically controlling interatomic interactions with high spatial resolution and negligible atomic loss.
资助信息	NKBRSFC [2011CB921502, 2012CB821305]; NSFC [61227902, 61378017, 11434015]; SKLQOQOD [KF201403]; SPRPCAS [XDB01020300]; Australian Research Council (ARC) Discovery Projects [FT130100815, DP140103231]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59455]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhang, YC,Liu, WM,Hu, H. Tuning a magnetic Feshbach resonance with spatially modulated laser light[J]. PHYSICAL REVIEW A,2014,90(5).
APA	Zhang, YC,Liu, WM,&Hu, H.(2014).Tuning a magnetic Feshbach resonance with spatially modulated laser light.PHYSICAL REVIEW A,90(5).
MLA	Zhang, YC,et al."Tuning a magnetic Feshbach resonance with spatially modulated laser light".PHYSICAL REVIEW A 90.5(2014).