3 papers
cond-mat.str-el2026
Quantized Collective Fluctuations in Correlated Fermion Systems
S. S. Onuchin, Ya. S. Lyakhova, L. D. Silakov +1
Collective excitations in fermionic systems play a crucial role in determining their physical properties. An important challenge is to develop efficient theoretical approaches for…
cond-mat.str-el2026
Time-dependent fluctuating local field approach for description of the correlated fermions dynamics
L. D. Silakov, Ya. S. Lyakhova, A. N. Rubtsov
We formulate a time-dependent Fluctuating Local Field (TD-FLF) method for correlated fermion dynamics, extending the stationary FLF approach. The wavefunction is approximated as an…
cond-mat.str-el2024
Fluctuating field series: towards calculations of correlated systems with high accuracy
Ya. S. Lyakhova, S. D. Semenov, A. I. Lichtenstein +1
We introduce regular series expansion for weakly- and moderately-correlated fermionic systems, based on Fluctuating Local Field approach. The method relies on the explicit account…