Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Phys Rev Lett. 2013 Sep 6;111(10):100502. doi: 10.1103/PhysRevLett.111.100502. Epub 2013 Sep 3.
The evolution of a system induced by counterdiabatic driving mimics the adiabatic dynamics without the requirement of slow driving. Engineering it involves diagonalizing the instantaneous Hamiltonian of the system and results in the need of auxiliary nonlocal interactions for matter waves. Here, experimentally realizable driving protocols are found for a large class of single-particle, many-body, and nonlinear systems without demanding the spectral properties as an input. The method is applied to the fast decompression of Bose-Einstein condensates in different trapping potentials.
反绝热驱动诱导的系统演化模拟了绝热动力学，而无需缓慢的驱动。对其进行工程设计需要对角化系统的瞬时哈密顿量，这导致需要辅助的非局域相互作用来实现物质波。在这里，找到了一类大的单粒子、多体和非线性系统的实验可实现的驱动方案，而不需要将谱性质作为输入。该方法应用于不同囚禁势下玻色-爱因斯坦凝聚体的快速压缩。
