Electric-field-modified Feshbach resonances in ultracold atom-molecule collision

doi:10.1088/1674-1056/26/1/013402

中国物理B ›› 2017, Vol. 26 ›› Issue (1): 13402-013402.doi: 10.1088/1674-1056/26/1/013402

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Electric-field-modified Feshbach resonances in ultracold atom-molecule collision

Dong Cheng(程冬), Ya Li(李亚), Eryin Feng(凤尔银), Wuying Huang(黄武英)

Department of Physics, Anhui Normal University, Wuhu 241000, China

收稿日期:2016-07-23 修回日期:2016-10-25 出版日期:2017-01-05 发布日期:2017-01-05
通讯作者: Eryin Feng E-mail:fengbf@mail.ahnu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874001 and 11374014).

Electric-field-modified Feshbach resonances in ultracold atom-molecule collision

Dong Cheng(程冬), Ya Li(李亚), Eryin Feng(凤尔银), Wuying Huang(黄武英)

Department of Physics, Anhui Normal University, Wuhu 241000, China

Received:2016-07-23 Revised:2016-10-25 Online:2017-01-05 Published:2017-01-05
Contact: Eryin Feng E-mail:fengbf@mail.ahnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874001 and 11374014).

摘要/Abstract

摘要：

We present a detailed analysis of near zero-energy Feshbach resonances in ultracold collisions of atom and molecule, taking the He-PH system as an example, subject to superimposed electric and magnetic static fields. We find that the electric field can induce Feshbach resonance which cannot occur when only a magnetic field is applied, through couplings of the adjacent rotational states of different parities. We show that the electric field can shift the position of the magnetic Feshbach resonance, and change the amplitude of resonance significantly. Finally, we demonstrate that, for narrow magnetic Feshbach resonance as in most cases of ultracold atom-molecule collision, the electric field may be used to modulate the resonance, because the width of resonance in electric field scale is relatively larger than that in magnetic field scale.

关键词: Feshbach resonance, ultracold atom-molecule collision

Abstract:

Key words: Feshbach resonance, ultracold atom-molecule collision

中图分类号: (Scattering of atoms and molecules)

34.50.-s

37.90.+j (Other topics in mechanical control of atoms, molecules, and ions)

程冬, 李亚, 凤尔银, 黄武英. Electric-field-modified Feshbach resonances in ultracold atom-molecule collision[J]. 中国物理B, 2017, 26(1): 13402-013402.

Dong Cheng(程冬), Ya Li(李亚), Eryin Feng(凤尔银), Wuying Huang(黄武英). Electric-field-modified Feshbach resonances in ultracold atom-molecule collision[J]. Chin. Phys. B, 2017, 26(1): 13402-013402.

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Electric-field-modified Feshbach resonances in ultracold atom-molecule collision

Electric-field-modified Feshbach resonances in ultracold atom-molecule collision

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