<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Yinhan Zhang</style></author><author><style face="normal" font="default" size="100%">Junren Shi</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Mapping a Fractional Quantum Hall State to a Fractional Chern Insulator</style></title><secondary-title><style face="normal" font="default" size="100%">Phys. Rev. B</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><number><style face="normal" font="default" size="100%">16</style></number><volume><style face="normal" font="default" size="100%">93</style></volume><pages><style face="normal" font="default" size="100%">165129</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We establish a variational principle for properly mapping a fractional quantum Hall state to a fractional Chern insulator (FCI). We find that the mapping has a gauge freedom which could generate a class of FCI ground-state wave functions appropriate for different forms of interactions. Therefore, the gauge should be fixed by a variational principle that minimizes the interaction energy of the FCI model. For a soft and isotropic electron-electron interaction, the principle leads to a gauge coinciding with that for maximally localized two-dimensional projected Wannier functions of a Landau level.</style></abstract><custom7><style face="normal" font="default" size="100%">000374537600003</style></custom7></record></records></xml>