Ergodic and nonergodic dual-unitary quantum circuits with arbitrary local Hilbert space dimension
Dual-unitary quantum circuits can be used to construct 1+ 1 dimensional lattice models for
which dynamical correlations of local observables can be explicitly calculated. We show …
which dynamical correlations of local observables can be explicitly calculated. We show …
Influence matrix approach to many-body Floquet dynamics
Recent experimental and theoretical works have made much progress toward
understanding nonequilibrium phenomena in thermalizing systems, which act as thermal …
understanding nonequilibrium phenomena in thermalizing systems, which act as thermal …
Dynamical purification and the emergence of quantum state designs from the projected ensemble
Quantum thermalization in a many-body system is defined by the approach of local
subsystems toward a universal form, describable as an ensemble of quantum states wherein …
subsystems toward a universal form, describable as an ensemble of quantum states wherein …
Exact thermalization dynamics in the “Rule 54” quantum cellular automaton
We study the out-of-equilibrium dynamics of the quantum cellular automaton known as “Rule
54.” For a class of low-entangled initial states, we provide an analytic description of the effect …
54.” For a class of low-entangled initial states, we provide an analytic description of the effect …
Temporal entanglement in chaotic quantum circuits
The concept of space evolution (or space-time duality) has emerged as a promising
approach for studying quantum dynamics. The basic idea involves exchanging the roles of …
approach for studying quantum dynamics. The basic idea involves exchanging the roles of …
Hierarchical generalization of dual unitarity
Quantum dynamics with local interactions in lattice models display rich physics, but is
notoriously hard to study. Dual-unitary circuits allow for exact answers to interesting physical …
notoriously hard to study. Dual-unitary circuits allow for exact answers to interesting physical …
From dual-unitary to quantum Bernoulli circuits: Role of the entangling power in constructing a quantum ergodic hierarchy
Deterministic classical dynamical systems have an ergodic hierarchy, from ergodic through
mixing, to Bernoulli systems that are “as random as a coin toss.” Dual-unitary circuits have …
mixing, to Bernoulli systems that are “as random as a coin toss.” Dual-unitary circuits have …
Maximum velocity quantum circuits
We consider the long-time limit of out-of-time-order correlators (OTOCs) in two classes of
quantum lattice models with time evolution governed by local unitary quantum circuits and …
quantum lattice models with time evolution governed by local unitary quantum circuits and …
From dual unitarity to generic quantum operator spreading
Dual-unitary circuits are paradigmatic examples of exactly solvable yet chaotic quantum
many-body systems, but solvability naturally goes along with a degree of nongeneric …
many-body systems, but solvability naturally goes along with a degree of nongeneric …
Thirty-six entangled officers of Euler: Quantum solution to a classically impossible problem
SA Rather, A Burchardt, W Bruzda… - Physical Review Letters, 2022 - APS
The negative solution to the famous problem of 36 officers of Euler implies that there are no
two orthogonal Latin squares of order six. We show that the problem has a solution …
two orthogonal Latin squares of order six. We show that the problem has a solution …