Investigating global and topological order of states by local measurement and classical communication: Study on SPT phase diagrams by quantum energy teleportation
arXiv:2302.09630 · doi:10.1116/5.0164999
Abstract
Distinguishing non-local orders, including global and topological orders of states through solely local measurements and classical communications (LOCC) is a highly non-trivial and challenging task since the topology of states is determined by the global characteristics of the many-body system, such as the system's symmetry and the topological space it is based on. Here we report that we reproduced the phase diagram of Ising model and symmetry protected topological (SPT) phases using the quantum energy teleportation protocol, which foresees non-trivial energy transfer between remote observers using the entanglement nature of the ground state and LOCC. The model we use includes the Haldane model, the AKLT model and the Kitaev model. Therefore our method paves a new general experimental framework to determine and quantify phase transitions in various condensed matter physics and statistical mechanics.
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