169 citations · 1.3k across the 65 of their papers we have counts for
4 papers · 1 filter
Renormalization group invariant mean-field model for QCD at finite isospin density
Bastian B. Brandt, Volodymyr Chelnokov, Gergely Endrodi +3
QCD at nonzero isospin chemical potentials has phenomenological relevance for a series of physical systems and provides an ideal testground for the modeling of dense strongly inter…
Pion condensation in the early Universe at nonvanishing lepton flavor asymmetry and its gravitational wave signatures
Volodymyr Vovchenko, Bastian B. Brandt, Francesca Cuteri +3
We investigate the possible formation of a Bose-Einstein condensed phase of pions in the early Universe at nonvanishing values of lepton flavor asymmetries. A hadron resonance gas…
New class of compact stars: Pion stars
Bastian B. Brandt, Gergely Endrodi, Eduardo S. Fraga +3
We investigate the viability of a new type of compact star whose main constituent is a Bose-Einstein condensate of charged pions. Several different setups are considered, where a g…
A relation between screening masses and real-time rates
B. B. Brandt, A. Francis, M. Laine +1
Thermal screening masses related to the conserved vector current are determined for the case that the current carries a non-zero Matsubara frequency, both in a weak-coupling approa…