3 papers
hep-th2021
Continuum approach to real time dynamics of 1+1D gauge field theory: out of horizon correlations of the Schwinger model
Ivan Kukuljan
We develop a truncated Hamiltonian method to study nonequilibrium real time dynamics in the Schwinger model - the quantum electrodynamics in D=1+1. This is a purely continuum metho…
cond-mat.stat-mech2019
Out-of-horizon correlations following a quench in a relativistic quantum field theory
Ivan Kukuljan, Spyros Sotiriadis, Gabor Takacs
One of the manifestations of relativistic invariance in non-equilibrium quantum field theory is the "horizon effect" a.k.a. light-cone spreading of correlations: starting from an i…
cond-mat.stat-mech2018
Correlation Functions of the Quantum Sine-Gordon Model in and out of Equilibrium
Ivan Kukuljan, Spyros Sotiriadis, Gabor Takacs
Complete information on the equilibrium behaviour and dynamics of a quantum field theory (QFT) is provided by multipoint correlation functions. However, their theoretical calculati…