%0 Generic %1 liu2014chiral %A Liu, Xiong-Jun %A Liu, Zheng-Xin %A Law, K. T. %A Liu, W. Vincent %A Ng, T. K. %D 2014 %K interesting %T Chiral Topological Orders in an Optical Raman Lattice %U http://arxiv.org/abs/1405.3975 %X We find an optical Raman lattice without spin-orbit coupling showing chiral topological orders for cold atoms. Only two incident plane-wave lasers are applied to generate simultaneously a double-well square lattice and periodic Raman couplings, the latter of which drive the nearest-neighbor hopping and create a staggered flux pattern across the lattice. Such a minimal setup is found interestingly to yield the quantum anomalous Hall effect in the single particle regime, while in the interacting regime it achieves the $J_1$-$J_2$-$K$ model which supports a chiral spin liquid phase. We further show that heating in the present optical Raman lattice is reduced by more than one order of magnitude compared with the conventional laser-assisted tunneling schemes. This suggests that the predicted topological chiral states be well reachable with the current experimental capability.

@misc{liu2014chiral, abstract = {We find an optical Raman lattice without spin-orbit coupling showing chiral topological orders for cold atoms. Only two incident plane-wave lasers are applied to generate simultaneously a double-well square lattice and periodic Raman couplings, the latter of which drive the nearest-neighbor hopping and create a staggered flux pattern across the lattice. Such a minimal setup is found interestingly to yield the quantum anomalous Hall effect in the single particle regime, while in the interacting regime it achieves the $J_1$-$J_2$-$K$ model which supports a chiral spin liquid phase. We further show that heating in the present optical Raman lattice is reduced by more than one order of magnitude compared with the conventional laser-assisted tunneling schemes. This suggests that the predicted topological chiral states be well reachable with the current experimental capability.}, added-at = {2014-05-16T08:01:34.000+0200}, author = {Liu, Xiong-Jun and Liu, Zheng-Xin and Law, K. T. and Liu, W. Vincent and Ng, T. K.}, biburl = {https://www.bibsonomy.org/bibtex/2db65e05e5c4bcef8be60c8e0536ca230/scavgf}, description = {Chiral Topological Orders in an Optical Raman Lattice}, interhash = {c9f5ba7526bc796c4b60b8d67facff26}, intrahash = {db65e05e5c4bcef8be60c8e0536ca230}, keywords = {interesting}, note = {cite arxiv:1405.3975Comment: 5 pages, 3 figures, plus supplementary material}, timestamp = {2014-05-16T08:01:34.000+0200}, title = {Chiral Topological Orders in an Optical Raman Lattice}, url = {http://arxiv.org/abs/1405.3975}, year = 2014 }