96 citations · 248 across the 6 of their papers we have counts for
6 papers
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…
Cascade of singularities in the spin dynamics of a perturbed quantum critical Ising chain
Xiao Wang, Haiyuan Zou, Kristóf Hódsági +3
When the quantum critical transverse-field Ising chain is perturbed by a longitudinal field, a quantum integrable model emerges in the scaling limit with massive excitations descri…
-deformation and long range spin chains
Balázs Pozsgay, Yunfeng Jiang, Gábor Takács
We point out that two classes of deformations of integrable models, developed completely independently, have deep connections and share the same algebraic origin. One class include…
Perturbative post-quench overlaps in Quantum Field Theory
Kristóf Hódsági, Márton Kormos, Gábor Takács
In analytic descriptions of quantum quenches, the overlaps between the initial pre-quench state and the eigenstates of the time evolving Hamiltonian are crucial ingredients. We con…
Quench dynamics of the Ising field theory in a magnetic field
Kristóf Hódsági, Márton Kormos, Gábor Takács
We numerically simulate the time evolution of the Ising field theory after quenches starting from the integrable model using the Truncated Conformal Space Approach. The resul…
Hamiltonian truncation approach to quenches in the Ising field theory
Tibor Rakovszky, Márton Mestyán, Mario Collura +2
In contrast to lattice systems where powerful numerical techniques such as matrix product state based methods are available to study the non-equilibrium dynamics, the non-equilibri…