Dynamical purification phase transition induced by quantum measurements
MJ Gullans, DA Huse - Physical Review X, 2020 - APS
Continuously monitoring the environment of a quantum many-body system reduces the
entropy of (purifies) the reduced density matrix of the system, conditional on the outcomes of …
entropy of (purifies) the reduced density matrix of the system, conditional on the outcomes of …
Effective theory for the measurement-induced phase transition of Dirac fermions
A wave function subject to unitary time evolution and exposed to measurements undergoes
pure state dynamics, with deterministic unitary and probabilistic measurement-induced state …
pure state dynamics, with deterministic unitary and probabilistic measurement-induced state …
Entanglement transition in a monitored free-fermion chain: From extended criticality to area law
We analyze the quantum trajectory dynamics of free fermions subject to continuous
monitoring. For weak monitoring, we identify a novel dynamical regime of subextensive …
monitoring. For weak monitoring, we identify a novel dynamical regime of subextensive …
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 …
Measurement-induced dark state phase transitions in long-ranged fermion systems
We identify an unconventional algebraic scaling phase in the quantum dynamics of long-
range hopping, free fermions, which are exposed to continuous local measurements. The …
range hopping, free fermions, which are exposed to continuous local measurements. The …
Measurement-induced criticality in -dimensional hybrid quantum circuits
We investigate the dynamics of two-dimensional quantum spin systems under the combined
effect of random unitary gates and local projective measurements. When considering steady …
effect of random unitary gates and local projective measurements. When considering steady …
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 …
Spacetime duality between localization transitions and measurement-induced transitions
Time evolution of quantum many-body systems typically leads to a state with maximal
entanglement allowed by symmetries. Two distinct routes to impede entanglement growth …
entanglement allowed by symmetries. Two distinct routes to impede entanglement growth …
Measurement-induced quantum criticality under continuous monitoring
We investigate entanglement phase transitions from volume-law to area-law entanglement
in a quantum many-body state under continuous position measurement on the basis of the …
in a quantum many-body state under continuous position measurement on the basis of the …