Quantum many-body scars and Hilbert space fragmentation: a review of exact results
The discovery of quantum many-body scars (QMBS) both in Rydberg atom simulators and in
the Affleck–Kennedy–Lieb–Tasaki spin-1 chain model, have shown that a weak violation of …
the Affleck–Kennedy–Lieb–Tasaki spin-1 chain model, have shown that a weak violation of …
Colloquium: Quantum and classical discrete time crystals
The spontaneous breaking of time-translation symmetry has led to the discovery of a new
phase of matter: the discrete time crystal. Discrete time crystals exhibit rigid subharmonic …
phase of matter: the discrete time crystal. Discrete time crystals exhibit rigid subharmonic …
Quantum many-body scars and weak breaking of ergodicity
Thermalization is the inevitable fate of many complex quantum systems, whose dynamics
allow them to fully explore the vast configuration space regardless of the initial state—the …
allow them to fully explore the vast configuration space regardless of the initial state—the …
Quantum many-body scars: A quasiparticle perspective
Weakly interacting quasiparticles play a central role in the low-energy description of many
phases of quantum matter. At higher energies, however, quasiparticles cease to be well …
phases of quantum matter. At higher energies, however, quasiparticles cease to be well …
Observation of a continuous time crystal
Time crystals are classified as discrete or continuous depending on whether they
spontaneously break discrete or continuous time translation symmetry. Although discrete …
spontaneously break discrete or continuous time translation symmetry. Although discrete …
Engineered dissipation for quantum information science
Quantum information processing relies on the precise control of non-classical states in the
presence of many uncontrolled environmental degrees of freedom. The interactions …
presence of many uncontrolled environmental degrees of freedom. The interactions …
Observation of a dissipative time crystal
We present the first experimental realization of a time crystal stabilized by dissipation. The
central signature in our implementation in a driven open atom-cavity system is a period …
central signature in our implementation in a driven open atom-cavity system is a period …
Nonequilibrium boundary-driven quantum systems: Models, methods, and properties
Recent years have seen tremendous progress in the theoretical understanding of quantum
systems driven dissipatively by coupling to different baths at their edges. This was possible …
systems driven dissipatively by coupling to different baths at their edges. This was possible …
Dynamical phase transitions in the collisionless pre-thermal states of isolated quantum systems: theory and experiments
We overview the concept of dynamical phase transitions (DPTs) in isolated quantum
systems quenched out of equilibrium. We focus on non-equilibrium transitions characterized …
systems quenched out of equilibrium. We focus on non-equilibrium transitions characterized …
-pairing in Hubbard models: From spectrum generating algebras to quantum many-body scars
We revisit the η-pairing states in Hubbard models and explore their connections to quantum
many-body scars to discover a universal scars mechanism. η-pairing occurs due to an …
many-body scars to discover a universal scars mechanism. η-pairing occurs due to an …