87 citations · 773 across the 65 of their papers we have counts for
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Shakhov-type extension of the relaxation time approximation in relativistic kinetic theory and second-order fluid dynamics
Victor E. Ambruş, Etele Molnár
We present a relativistic Shakhov-type generalization of the Anderson-Witting relaxation time model for the Boltzmann collision integral to modify the ratio of momentum diffusivity…
Relativistic second-order dissipative and anisotropic fluid dynamics in the relaxation-time approximation for an ideal gas of massive particles
Victor Ambrus, Etele Molnár, Dirk H. Rischke
In this paper, we study all transport coefficients of second-order dissipative fluid dynamics derived by V. E. Ambrus et al. [Phys. Rev. D 106, 076005 (2022)] from the relativistic…
Analytical structure of the binary collision integral and the ultrarelativistic limit of transport coefficients of an ideal gas
David Wagner, Victor E. Ambrus, Etele Molnar
In this paper we discuss the analytical properties of the binary collision integral for a gas of ultrarelativistic particles interacting via a constant cross-section. Starting from…
Helical Separation Effect and helical heat transport for Dirac fermions
Victor E. Ambruş, Maxim N. Chernodub
An ensemble of massless fermions can be characterized by its total helicity charge given by the sum of axial charges of particles minus the sum of axial charges of antiparticles. W…
Acceleration as a circular motion along an imaginary circle: Kubo-Martin-Schwinger condition for accelerating field theories in imaginary-time formalism
Victor E. Ambruş, Maxim N. Chernodub
We discuss the imaginary-time formalism for field theories in thermal equilibrium in uniformly accelerating frames. We show that under a Wick rotation of Minkowski spacetime, the R…
Rigidly-rotating scalar fields: between real divergence and imaginary fractalization
Victor E. Ambruş, Maxim N. Chernodub
The thermodynamics of rigidly rotating systems experience divergences when the system dimensions transverse to the rotation axis exceed the critical size imposed by the causality c…