A U(1)-symmetric pseudo-Majorana functional renormalization scheme for finite-temperature XXZ magnets with Z-fields is derived and validated against exact, quantum Monte Carlo, and experimental results.
\ Abrikosov , author L.P
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Pseudo-Majorana functional renormalization for frustrated XXZ spin-1/2 models with field or magnetization along the spin-Z direction at finite temperature
A U(1)-symmetric pseudo-Majorana functional renormalization scheme for finite-temperature XXZ magnets with Z-fields is derived and validated against exact, quantum Monte Carlo, and experimental results.