利用腔辅助中性原子对自旋环基态进行模拟。
Simulation of the ground states of spin rings with cavity-assisted neutral atoms.
作者信息
Xue Peng, Zhan Xiang, Bian Zhihao
机构信息
1] Department of Physics, Southeast University, Nanjing, Jiangsu 211189, China [2] State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China.
Department of Physics, Southeast University, Nanjing, Jiangsu 211189, China.
出版信息
Sci Rep. 2015 Jan 5;5:7623. doi: 10.1038/srep07623.
Quantum phase transitions occur when the ground state of a Hamiltonian undergoes qualitative changes with a control parameter changing. In this paper we consider a particular system--an Isng-type spin ring with competing many-body interactions. Depending on the relative strength interactions, the ground state of the system is either a product state or entangled state. We implement the system in a cavity-assisted neutral atomic simulator and study the non-locality and entanglement of the simulated ground state of an Ising-type three-spin ring with the control parameter changing. The simplicity of the setup and its robustness to noise give it a great practicality within the framework of current experimental technology.
当哈密顿量的基态随着控制参数的变化而发生质的改变时，量子相变就会发生。在本文中，我们考虑一个特定的系统——具有竞争多体相互作用的伊辛型自旋环。根据相互作用的相对强度，系统的基态要么是乘积态，要么是纠缠态。我们在腔辅助中性原子模拟器中实现该系统，并研究随着控制参数的变化，伊辛型三自旋环模拟基态的非局域性和纠缠。该装置的简单性及其对噪声的鲁棒性使其在当前实验技术框架内具有很大的实用性。
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