异质分子玻色-爱因斯坦凝聚体的抽运涡旋
Pumping vortex into a Bose-Einstein condensate of heteronuclear molecules
摘要：
杂原子分子由于具有永久的电偶极矩而引起人们的广泛关注。类似于具有磁偶极子的原子，非零电偶极子的存在显著地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。这项工作提出了一种通过类似的电场Ioffe-Pritchard阱（IPT）的轴向偏压的绝热翻转在异质结分子的冷凝物内部产生涡旋的机制，扩展了Ishoshima，{ \it et al.}的原始协议，[Phys. Rev. A \textbf{61}，063610（2000）]中描述了磁（B-）场IPT内的原子旋量凝聚体。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能为量子简并分子系统的研究提供一个新的实验平台。
英文摘要：
Heteronuclear molecules attract wide attention due to their permanent electric dipole moments. Analogous to atoms with magnetic dipoles, the existence of nonzero electric dipoles significantly enhance possibilities and mechanisms for 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 due to Ishoshima, {\it et al.}, [Phys. Rev. A \textbf{61}, 063610 (2000)] 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 the active investigations in quantum degenerate molecule systems.
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