A Luttinger-Ward analysis of the slave-rotor formalism is developed to compute Green's functions and thermodynamic properties in the U(1) spin liquid phase of the Hubbard model beyond mean-field.
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Numerical study of tetramer Heisenberg chain finds transition between tetramer and Haldane phases via deconfined critical state, with spinon/triplon/quinton excitations visible in RIXS for CuInVO5.
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Spin liquid phase in the Hubbard model: Luttinger-Ward analysis of the slave-rotor formalism
A Luttinger-Ward analysis of the slave-rotor formalism is developed to compute Green's functions and thermodynamic properties in the U(1) spin liquid phase of the Hubbard model beyond mean-field.
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Spin order, spin excitations, and RIXS spectra of spin-1/2 tetramer chains
Numerical study of tetramer Heisenberg chain finds transition between tetramer and Haldane phases via deconfined critical state, with spinon/triplon/quinton excitations visible in RIXS for CuInVO5.