Department of Physics, 1150 University Avenue, University of Wisconsin, Madison, Wisconsin 53706, USA.
Phys Rev Lett. 2013 Jul 19;111(3):033607. doi: 10.1103/PhysRevLett.111.033607. Epub 2013 Jul 17.
We propose and analyze an approach for preparation of high fidelity entanglement and antiferromagnetic states using Rydberg mediated interactions with dissipation. Using asymmetric Rydberg interactions the two-atom Bell singlet is a dark state of the Rydberg pumping process. Master equation simulations demonstrate Bell singlet preparation fidelity F=0.998. Antiferromagnetic states are generated on a four-spin plaquette in agreement with results found from diagonalization of the transverse field Ising Hamiltonian.
我们提出并分析了一种使用带有耗散的里德堡介导相互作用来制备高保真纠缠和反铁磁态的方法。使用非对称里德堡相互作用，双原子贝尔单态是里德堡泵浦过程的暗态。主方程模拟表明贝尔单态制备保真度 F=0.998。在一个四自旋 plaquette 上生成反铁磁态，与横向场伊辛哈密顿量对角化得到的结果一致。
