Non-Hermitian Hamiltonians provide a simple picture for inspecting dissipative systems with
natural or induced gain and loss. We investigate the Floquet dynamical phase transition in …

Quantum phase transitions universally exist in the ground and excited states of quantum
many-body systems, and they have a close relationship with the nonequilibrium dynamical …

The Yang-Lee edge singularity was originally studied from the standpoint of mathematical
foundations of phase transitions. However, direct observation of anomalous scaling with the …

Floquet dynamical quantum phase transitions (FDQPTs) are signified by recurrent
nonanalytic behaviors of observables in time. In this work, we introduce a quench-free and …

The Dicke model describes an ensemble of two-level atoms that are coupled to a confined
light mode of an optical cavity. Above a critical coupling, the cavity becomes macroscopically …

Dynamical phase transitions are defined through nonanalyticities of the survival probability
of an out-of-equilibrium time-evolving state at certain critical times. They ensue from zeros of …

Nonequilibrium evolution of the quantum states extend the notion of quantum phase
transition to a dynamical scenario, corresponding to the singular behavior of Loschmidt echo …

Determining the phase diagram of interacting quantum many-body systems is an important
task for a wide range of problems such as the understanding and design of quantum …

Dynamical quantum phase transitions are at the forefront of current efforts to understand
quantum matter out of equilibrium. Except for a few exactly solvable models, predictions of …

The accurate description and robust computational modeling of the nonequilibrium
properties of quantum systems remain a challenge in condensed matter physics. In this …