Nonlinear sigma models for monitored dynamics of free fermions
We derive field theory descriptions for measurement-induced phase transitions in free
fermion systems. We focus on a multiflavor Majorana chain, undergoing Hamiltonian …
fermion systems. We focus on a multiflavor Majorana chain, undergoing Hamiltonian …
Theory of free fermions under random projective measurements
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 …
random projective measurements of local site occupation numbers, based on the Keldysh …
Entanglement transitions from stochastic resetting of non-Hermitian quasiparticles
We put forward a phenomenological theory for entanglement dynamics in monitored
quantum many-body systems with well-defined quasiparticles. Within this theory …
quantum many-body systems with well-defined quasiparticles. Within this theory …
Controlling entanglement at absorbing state phase transitions in random circuits
P Sierant, X Turkeshi - Physical Review Letters, 2023 - APS
Many-body unitary dynamics interspersed with repeated measurements display a rich
phenomenology hallmarked by measurement-induced phase transitions. Employing …
phenomenology hallmarked by measurement-induced phase transitions. Employing …
Measurement-induced criticality in extended and long-range unitary circuits
We explore the dynamical phases of unitary Clifford circuits with variable-range interactions,
coupled to a monitoring environment. We investigate two classes of models, distinguished …
coupled to a monitoring environment. We investigate two classes of models, distinguished …
Enhanced entanglement negativity in boundary-driven monitored fermionic chains
We investigate entanglement dynamics in continuously monitored open quantum systems
featuring current-carrying nonequilibrium states. We focus on a prototypical one …
featuring current-carrying nonequilibrium states. We focus on a prototypical one …
Full counting statistics as probe of measurement-induced transitions in the quantum Ising chain
Non-equilibrium dynamics of many-body quantum systems under the effect of measurement
protocols is attracting an increasing amount of attention. It has been recently revealed that …
protocols is attracting an increasing amount of attention. It has been recently revealed that …
Purification timescales in monitored fermions
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 …
and the phase transitions of monitored free fermionic systems separating a mixed and a …
Absence of measurement-induced entanglement transition due to feedback-induced skin effect
A quantum many-body system subject to unitary evolution and repeated local
measurements with an increasing rate undergoes a measurement-induced entanglement …
measurements with an increasing rate undergoes a measurement-induced entanglement …
Entanglement phases, localization, and multifractality of monitored free fermions in two dimensions
K Chahine, M Buchhold - Physical Review B, 2024 - APS
We investigate the entanglement structure and wave function characteristics of continuously
monitored free fermions with U (1) symmetry in two spatial dimensions. By deriving the exact …
monitored free fermions with U (1) symmetry in two spatial dimensions. By deriving the exact …