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cond-mat.stat-mech2022
Momentum distribution functions and pair correlation functions of unpolarized uniform electron gas in warm dense matter regime
A. S. Larkin, V. S. Filinov, P. R. Levashov
In this paper we continued our research of the uniform electron gas, using the single--momentum path integral Monte Carlo method, and studied the momentum distribution functions an…
cond-mat.stat-mech2020
Sign problems in path integral formulations of quantum mechanics and quantum statistics
Vladimir Filinov, Alexander Larkin
Nowadays the term 'sign problem' is used to identify two different problems. The ideas to overcome the first type of the 'sign problem' of strongly oscillating complex valued imteg…