Details

Autor(en) / Beteiligte

• Li, Li-Hang
• Li, Jing-Lun
• Wang, Gao-Ren
• Cong, Shu-Lin

Titel

The modulating action of electric field on magnetically tuned Feshbach resonance

Ist Teil von

• The Journal of chemical physics, 2019-02, Vol.150 (6), p.064310-064310

Ort / Verlag

United States: American Institute of Physics

Erscheinungsjahr

2019

Quelle

Scitation (American Institute of Physics)

Beschreibungen/Notizen

• We investigate the modulating action of an external electric field on the magnetically tuned Feshbach resonance in ultracold heteronuclear atomic collision by using the multichannel quantum-defect theory (MQDT). The coupling between different partial wave states induced by an electric field is included into the singlet and triplet quantum defect matrices y(0) and y(1). By taking the truncated −C6/R6 − C8/R8 − C10/R10 potential as the reference potential, the threshold behaviors of four quantum-defect parameters for the lowest three partial waves are described. The results calculated by using the MQDT agree with those calculated using the coupled channel method. Moreover, we present an analytical expression used for describing the variation of the position and width of the magnetically tuned Feshbach resonance modulated by an electric field.