Decoherence from spin environments: Loschmidt echo and quasiparticle excitations
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DOI: 10.1103/physrevb.96.224302
Abstract: We revisit the problem of decoherence of a qubit centrally coupled to an interacting spin environment, here modeled by a quantum compass chain or an extended XY model in a staggered magnetic field. These two… read more here.
Keywords: spin environments; decoherence spin; environments loschmidt; spin ... See more keywords