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.
This result rules out the previously reported anomalous behaviors–namely, theT 2/3 variation in spe- cific heat and the T 1/3 scaling of thermal conductivity
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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.