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 …
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 …
Fractal, logarithmic, and volume-law entangled nonthermal steady states via spacetime duality
M Ippoliti, T Rakovszky, V Khemani - Physical Review X, 2022 - APS
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 …
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 …
Transitions in the learnability of global charges from local measurements
We consider monitored quantum systems with a global conserved charge, and ask how
efficiently an observer (“eavesdropper”) can learn the global charge of such systems from …
efficiently an observer (“eavesdropper”) can learn the global charge of such systems from …
Experimental realization of a measurement-induced entanglement phase transition on a superconducting quantum processor
Ergodic quantum many-body systems undergoing unitary dynamics evolve towards
increasingly entangled states characterized by an extensive scaling of entanglement …
increasingly entangled states characterized by an extensive scaling of entanglement …
Entanglement transitions in the quantum Ising chain: A comparison between different unravelings of the same Lindbladian
G Piccitto, A Russomanno, D Rossini - Physical Review B, 2022 - APS
We study the dynamics of entanglement in the quantum Ising chain with dephasing
dissipation in a Lindblad master equation form. We consider two unravelings which preserve …
dissipation in a Lindblad master equation form. We consider two unravelings which preserve …
Dynamics of measured many-body quantum chaotic systems
We consider the evolution of continuously measured many-body chaotic quantum systems.
Focusing on the dynamics of state purification, we analytically describe the limits of strong …
Focusing on the dynamics of state purification, we analytically describe the limits of strong …
Continuous gaussian measurements of the free boson CFT: A model for exactly solvable and detectable measurement-induced dynamics
Y Minoguchi, P Rabl, M Buchhold - SciPost Physics, 2022 - scipost.org
Hybrid evolution protocols, composed of unitary dynamics and repeated, weak or projective
measurements, give rise to new, intriguing quantum phenomena, including entanglement …
measurements, give rise to new, intriguing quantum phenomena, including entanglement …
[HTML][HTML] Dissipative Floquet dynamics: From steady state to measurement induced criticality in trapped-ion chains
Quantum systems evolving unitarily and subject to quantum measurements exhibit various
types of non-equilibrium phase transitions, arising from the competition between unitary …
types of non-equilibrium phase transitions, arising from the competition between unitary …