论文标题
在一维光学晶格中生产和存储自旋方状态和Greenberger-Horne-Zeilinger状态
Producing and storing spin-squeezed states and Greenberger-Horne-Zeilinger states in a one-dimensional optical lattice
论文作者
论文摘要
我们研究了一个由一个被困在一维光学晶格中的超冷原子组成的系统中，研究了自旋挤压状态以及更纠缠到宏观叠加的纠缠状态的动力学生成和存储。该系统最初是在两个内部状态的叠加中的超氟阶段，首先是由原子 - 原子相互作用动态地纠缠的，然后绝热地将量子相关性的一个原子带到了莫特绝缘体阶段。确切的数值对角线化使我们能够通过在零温度和有限温度下查看各种相关函数，在现场和不同位点之间的各种相关函数来探索存储状态的结构，因为它可以在量子-GAS显微镜的实验中进行。
We study the dynamical generation and storage of spin squeezed states, as well as more entangled states up to macroscopic superpositions, in a system composed of a few ultra-cold atoms trapped in a one-dimensional optical lattice. The system, initially in the superfluid phase with each atom in a superposition of two internal states, is first dynamically entangled by atom-atom interactions then adiabatically brought to the Mott-insulator phase with one atom per site where the quantum correlations are stored. Exact numerical diagonalization allows us to explore the structure of the stored states by looking at various correlation functions, on site and between different sites, both at zero temperature and at finite temperature, as it could be done in an experiment with a quantum-gas microscope.
