期刊
PHYSICAL REVIEW A
卷 94, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.94.043623
关键词
-
资金
- DARPA (Optical Lattice Emulator Grant)
- Spanish MINECO [FIS2014-54672-P]
- Generalitat de Catalunya Grant [2014SGR401]
- Maria de Maeztu Grant [MDM-2014-0369]
- EU (Marie Curie IEF) [236240]
- Hamburg Center for Ultrafast Imaging
- Ramon y Cajal MINECO program
We devise a method to shortcut the adiabatic evolution of a spin-1 Bose gas with an external magnetic field as the control parameter. An initial many-body state with almost all bosons populating the Zeeman sublevel m = 0 is evolved to a final state very close to a macroscopic spin-singlet condensate, a fragmented state with three macroscopically occupied Zeeman states. The shortcut protocol, obtained by an approximate mapping to a harmonic oscillator Hamiltonian, is compared to linear and exponential variations of the control parameter. We find a dramatic speedup of the dynamics when using the shortcut protocol.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据