We show that confinement in the quantum Ising model leads to nonthermal eigenstates, in
both continuum and lattice theories, in both one (1D) and two dimensions (2D). In the …

There is a dichotomy in the nonequilibrium dynamics of quantum many-body systems. In the
presence of integrability, expectation values of local operators equilibrate to values …

We simulate, using nonperturbative methods, the real-time dynamics of small bubbles of
“false vacuum” in a quantum spin chain near criticality, where the low-energy physics is …

We study the dynamics of entanglement in the scaling limit of the Ising spin chain in the
presence of both a longitudinal and a transverse field. We present analytical results for the …

Complete information on the equilibrium behavior and dynamics of quantum field theory
(QFT) is provided by multipoint correlation functions. However, their theoretical calculation is …

The presence of long-lived oscillations in the expectation values of local observables after
quantum quenches has recently attracted considerable attention in relation to weak …

We both review and augment the lightcone conformal truncation (LCT) method. LCT is a
Hamiltonian truncation method for calculating dynamical quantities in QFT in infinite volume …

The false vacuum is a metastable state that can occur in quantum field theory, and its decay
was first studied semiclassically by Coleman. In this work, we consider the 1+ 1 dimensional …

Abstract Truncated Conformal Space Approach (TCSA) is a highly efficient method to
compute spectra, operator matrix elements and time evolution in quantum field theories …

We discuss the nonequilibrium time evolution of the phase field in the sine-Gordon model
using two very different approaches: the truncated Wigner approximation and the truncated …