19 citations · 39 across the 4 of their papers we have counts for
4 papers
An asymmetry lower bound on fermionic non-Gaussianity
Filiberto Ares, Michele Mazzoni, Sara Murciano +3
Fermionic Gaussian states are a fundamental tool in many-body physics, faithfully representing non-interacting quantum systems and allowing for efficient numerical simulations. Giv…
Non-equilibrium time evolution in the sine-Gordon model revisited
Dávid Szász-Schagrin, Izabella Lovas, Gábor Takács
We study the non-equilibrium dynamics of the quantum sine-Gordon model describing a pair of Josephson-coupled one-dimensional bosonic quasi-condensates. Motivated by experimentally…
False vacuum decay in the 1+1 dimensional theory
Dávid Szász-Schagrin, Gábor Takács
The false vacuum is a metastable state that can occur in quantum field theory, and its decay was first studied semi-classically by Coleman. In this work we consider the 1+1 dimensi…
Quantum quenches in an interacting field theory: full quantum evolution vs. semi-classical approximations
D. Szász-Schagrin, I. Lovas, G. Takács
We develop a truncated Hamiltonian method to investigate the dynamics of the theory following quantum quenches. The results are compared to two different semi-classica…