We review the methodology to theoretically treat parity-time-(PT-) symmetric, non-Hermitian
quantum many-body systems. They are realized as open quantum systems with PT …

We derive field theory descriptions for measurement-induced phase transitions in free
fermion systems. We focus on a multiflavor Majorana chain, undergoing Hamiltonian …

We develop an analytical approach to the study of one-dimensional free fermions subject to
random projective measurements of local site occupation numbers, based on the Keldysh …

A theory of the measurement-induced entanglement phase transition for free-fermion
models in d> 1 dimensions is developed. The critical point separates a gapless phase with ℓ …

We investigate the entanglement dynamics of the non-Hermitian Aubry-André-Harper chain.
The results reveal that by increasing quasiperiodic strength, a phase transition occurs from …

External monitoring of quantum many-body systems can give rise to a measurement-
induced phase transition characterized by a change in behavior of the entanglement entropy …

Projective measurements in random quantum circuits lead to a rich breadth of entanglement
phases and extend the realm of nonunitary quantum dynamics. Here, we explore the …

We investigate the crucial role played by a global symmetry in the purification timescales
and the phase transitions of monitored free fermionic systems separating a mixed and a …

The scaling law of entanglement entropy could undergo qualitative changes during the
nonunitary evolution of a quantum many-body system. In this work, we uncover such …

The study of entanglement in the symmetry sectors of a theory has recently attracted a lot of
attention since it provides better understanding of some aspects of quantum many-body …