18 citations · 52 across the 10 of their papers we have counts for
10 papers
Critical behavior of isotropic systems with strong dipole-dipole interaction from the functional renormalization group
Georgii Kalagov, Nikita Lebedev
We compute the critical exponents of three-dimensional magnets with strong dipole-dipole interactions using the functional renormalization group (FRG) within the local potential ap…
Functional renormalization group equations for antisymmetric tensor field models at finite temperature
Georgii Kalagov
Within the framework of the functional renormalization group, we derived the flow equations for the scale-dependent effective action at finite temperature for models involving an a…
Fluctuation-induced first-order superfluid transition in unitary Fermi gases
Georgii Kalagov
We investigate the superfluid phase transition in an -symmetric Fermi gas with distinct spin states using the functional renormalization group. To capture pairi…
Quantum-field multiloop calculations in critical dynamics
Ella Ivanova, Georgii Kalagov, Marina Komarova +1
The quantum-field renormalization group method is one of the most efficient and powerful tools for studying critical and scaling phenomena in interacting many-particle systems. The…
Superfluidity in multicomponent fermions via the functional renormalization group
Michal Hnatič, Georgii Kalagov
We reveal the critical properties of the phase transition towards superfluid order that has been proposed to occur in large spin fermionic systems. For this purpose, we consider th…
XY model with competing higher-order interactions
Milan Žukovič, Georgii Kalagov
We study effects of competing pairwise higher-order interactions (HOI) with alternating signs and exponentially decreasing intensity on critical behavior of the XY model. It is fou…
Scaling behavior in interacting systems: joint effect of anisotropy and compressibility
M. Hnatič, G. Kalagov, T. Lučivjanský
Motivated by the ubiquity of turbulent flows in realistic conditions, effects of turbulent advection on two models of classical non-linear systems are investigated. In particular,…
Magnetic quasi-long-range ordering in nematics due to competition between higher-order couplings
Milan Žukovič, Georgii Kalagov
Critical properties of the two-dimensional model involving solely nematic-like biquadratic and bicubic terms are investigated by spin-wave analysis and Monte Carlo simulation.…
model with higher-order exchange
Milan Žukovič, Georgii Kalagov
An model, generalized by inclusion of up to an infinite number of higher-order pairwise interactions with an exponentially decreasing strength, is studied by spin-wave theory…
Renormalization-group investigation of a superconducting -phase transition using five loops calculations
G. A. Kalagov, M. V. Kompaniets, M. Yu. Nalimov
We have studied a Fermi system with attractive -symmetric interaction at the finite temperatures by the quantum field renormalization group (RG) method. The RG functions have…