71 citations · 254 across the 31 of their papers we have counts for
32 papers
Pseudogap formation in the moderate correlated layered attractive Hubbard model
A. V. Belov, A. N. Rubtsov, B. Krippa
We consider the layered attractive Hubbard model with a moderate interaction strength at quarter filling. The Green's function, self-energy, and density of states are calculated fo…
Asymmetric binary Bose mixtures: a Functional Renormalisation Group study
Boris Krippa
Zero-temperature binary Bose mixtures with mass and intraspecies couplings imbalances are studied using the functional renormalisation group (FRG) framework. We find that this dual…
Proton fraction in neutron star matter: Dynamical mean-field approach
Maxim Velikanov, Alexey N. Rubtsov, Boris Krippa
Dynamical mean field theory (DMFT) is used to study neutron matter, both with and without admixture of the proton fraction. The system is approximated by the lattice Habbard model.…
Naive versus mirror assignment at finite density: correlator mixing and chiral symmetry restoration
Boris Krippa
Chiral symmetry imposes some constrains on hadron correlation functions in dense medium. These constraints imply a certain general structure of the two- and three-point correlation…
Renormalisation Group Flow and Kaon Condensation
Boris Krippa
Functional renormalisation group approach is applied to a system of kaons with finite chemical potential. A set of approximate flow equations for the effective couplings is derived…
Functional RG for imbalanced many-fermion systems
Boris Krippa
The Functional Renormalisation Group approach is applied the imbalanced many-fermion systems. The system is found to exhibit the first order phase transition from the superfluid to…