[HTML][HTML] Random quantum circuits
Quantum circuits—built from local unitary gates and local measurements—are a new
playground for quantum many-body physics and a tractable setting to explore universal …
playground for quantum many-body physics and a tractable setting to explore universal …
Measurement and entanglement phase transitions in all-to-all quantum circuits, on quantum trees, and in Landau-Ginsburg theory
A quantum many-body system whose dynamics includes local measurements at a nonzero
rate can be in distinct dynamical phases, with differing entanglement properties. We …
rate can be in distinct dynamical phases, with differing entanglement properties. We …
Entanglement phase transitions in measurement-only dynamics
Unitary circuits subject to repeated projective measurements can undergo an entanglement
phase transition (EPT) as a function of the measurement rate. This transition is generally …
phase transition (EPT) as a function of the measurement rate. This transition is generally …
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 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 …
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 …
Postselection-free entanglement dynamics via spacetime duality
M Ippoliti, V Khemani - Physical Review Letters, 2021 - APS
The dynamics of entanglement in “hybrid” nonunitary circuits (for example, involving both
unitary gates and quantum measurements) has recently become an object of intense study …
unitary gates and quantum measurements) has recently become an object of intense study …
Fractal, logarithmic, and volume-law entangled nonthermal steady states via spacetime duality
The extension of many-body quantum dynamics to the nonunitary domain has led to a series
of exciting developments, including new out-of-equilibrium entanglement phases and phase …
of exciting developments, including new out-of-equilibrium entanglement phases and phase …
Fate of measurement-induced phase transition in long-range interactions
T Minato, K Sugimoto, T Kuwahara, K Saito - Physical review letters, 2022 - APS
We consider quantum many-body dynamics under quantum measurements, where the
measurement-induced phase transitions (MIPs) occur when changing the frequency of the …
measurement-induced phase transitions (MIPs) occur when changing the frequency of the …
Volume-to-area law entanglement transition in a non-Hermitian free fermionic chain
Y Le Gal, X Turkeshi, M Schirò - SciPost Physics, 2023 - scipost.org
We consider the dynamics of the non-Hermitian Su-Schrieffer-Heeger model arising as the
no-click limit of a continuously monitored free fermion chain where particles and holes are …
no-click limit of a continuously monitored free fermion chain where particles and holes are …