Lower Bound for the Ground-State Energy Density of a 1D Quantum Spin System
classification
❄️ cond-mat.str-el
cond-mat.dis-nnquant-ph
keywords
densityenergyground-statelowerquantumspinsystembound
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We present a simple method to calculate systematic lower bounds for the ground-state energy density of a 1D quantum spin system.
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