LFINITE TEMPERATURE

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LFINITE_TEMPERATURE = [logical]
Default: LFINITE_TEMPERATURE = .FALSE. 

Description: LFINITE_TEMPERATURE switches on the finite-temperature formalism of many-body perturbation theory for adiabatic-connection-fluctuation-dissipation-theorem (ACFDT)/GW calculations.


This feature is available as of VASP.6.1.0 for ACFDT/random-phase-approximation (RPA), i.e., ALGO=ACFDT, ACFDTR, ACFDTRK, and low-scaling GW calculations, i.e., ALGO=G0W0R, G0W0RK. For LFINITE_TEMPERATURE=.TRUE., a compressed Matsubara-frequency grid is used (instead of the zero-temperature formalism of many-body perturbation theory). This allows for GW and RPA calculations for metallic systems [1].

Warning: This must be used in combination with Fermi smearing set by ISMEAR = -1.

Related Tags and Sections

NOMEGA, NOMEGAPAR, NTAUPAR, ISMEAR