Lie–Schwinger Block-Diagonalization and Gapped Quantum Chains
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DOI: 10.1007/s00220-019-03613-2
Abstract: We study quantum chains whose Hamiltonians are perturbations by bounded interactions of short range of a Hamiltonian that does not couple the degrees of freedom located at different sites of the chain and has a… read more here.
Keywords: quantum chains; diagonalization gapped; schwinger block; block diagonalization ... See more keywords