極性分子間以外場調製的偶極交互作用

Manipulating Dipolar Interaction Between Polar Molecules with External Fields

李浩(Lee, Hao)

指導教授 ： 王道維

國立清華大學/理學院/物理學系/碩士(2009年)

https://doi.org/10.6843/NTHU.2009.00449

摘要

Different from the magnetic dipolar atoms, polar molecules have additional rotational degree
of freedom, which can have widely tunable eigenstate energies by detuning the external DC
or AC electric field. Here we follow the earlier work of P. Zoller’s scheme to calculate
the effective potential energy between two identical (bosonic or fermionic) polar molecules,
taking into account their rotational states under various external fields. Our results show a
dramatic change of dipolar interaction, and hence lead to various new kinds of many-body
effects. Besides, we also give further calculation of condensation profile of possible rotating
DBEC and investigate possible directions to find new phenomena such as stabilized supersolid
phase with applying appropriate external fields.

關鍵字

冷原子 ； 冷分子 ； 波色-愛因斯坦凝結 ； 偶極交互作用力 ； 偶極分子

並列摘要

無資料

並列關鍵字

cold-atom ； ultracold molecule ； Bose-Einstein Condensation ； dipole-dipole interaction ； dipolar molecule

參考文獻

[2] Masatoshi Kajita, Phys. Rev. A 74, 032710 (2006)

[6] J. I. Cirac and P. Zoller, Phys. Rev. Lett. 74, 4091 (1995)

Rev. Lett. 97, 033003 (2006)

[9] E. A. L. Henn, J. A. Seman, G. Roati, K. M. F. Magalh˜aes, and V. S. Bagnato,

arXiv:0904.2564v1 (2009).