4 papers
Dynamical axion quasiparticles: an open quantum system
Daniel Boyanovsky
We study the non-equilibrium dynamics of emergent dynamical axion quasiparticles (DAQ) coupled to a photon bath in equilibrium via a Chern-Simons term as a quantum open system. A q…
What spectators do during inflation
Daniel Boyanovsky
The inflaton equation of motion including one loop radiative corrections from spectator fields is obtained. We consider a massless scalar conformally coupled to gravity and a massl…
Probing dynamical axion quasiparticles with two-photon correlations
Daniel Boyanovsky
Dynamical axion (quasi) particles are emergent collective excitations in topological magnetic insulators that break parity and time reversal invariance or in Weyl semimetals. They…
Synthetic and cosmological axion hybridization: entangled photons, (HBT) and quantum beats
Daniel Boyanovsky
In this article it is argued that synthetic axions, emergent collective excitations in topological insulators or Weyl semimetals hybridize with the cosmological axion, a compelling…