Pumping vortex into a Bose–Einstein condensate of heteronuclear molecules
Pumping vortex into a Bose–Einstein condensate of heteronuclear molecules
复制标题
将涡流泵入异核分子的玻色-爱因斯坦凝聚态
DOI：
10.1088/1367-2630/11/5/055019
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Li You
中科院分区：
文献类型：
--
作者：
Zhi;Rui Wang;Li You
杂原子分子由于具有永久的电偶极矩而引起了人们的广泛关注。类似于具有磁偶极子的原子，非零电偶极子的存在显著增强了具有电场的量子简并分子系统的控制和设计的可能性和机制。本文提出了一种通过类似电场Ioffe-Pritchard阱（IPT）的轴向偏压的绝热翻转在异质结分子凝聚体内部产生涡旋的机制，扩展了Isoshima等人（2000 Phys.Rev.A61063610）关于磁（B）场IPT内部原子旋量凝聚体的原始方案。我们提供了分析证明和数值模拟来说明这种涡旋泵协议的高保真操作。我们希望我们的工作为量子简并分子系统的积极研究提供了令人鼓舞的实验可能性。
Heteronuclear molecules have attracted wide attention due to their permanent electric dipole moments. Analogous to atoms with magnetic dipoles, the existence of nonzero electric dipoles significantly enhances the possibilities and mechanisms for the control and design of quantum degenerate molecule systems with electric (E) fields. This work proposes a vortex creation mechanism inside a condensate of heteronuclear molecules through the adiabatic flipping of the axial bias of an analogous E-field Ioffe–Pritchard trap (IPT), extending the original protocol of Isoshima et al (2000 Phys. Rev. A 61 063610) for an atomic spinor condensate inside a magnetic (B)-field IPT. We provide both analytic proof and numerical simulations to illustrate the high fidelity operation of this vortex pump protocol. We hope our work provides stimulating experimental possibilities for active investigations in quantum degenerate molecule systems.