A graph-theoretic method systematically constructs quantum many-body scars in frustrated Rydberg lattices via type-I and type-II mechanisms, with numerical demonstration of an exponential family of scarred trajectories on the hexagonal lattice.
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Simulations of 21-30 Rb-Cs atoms on a Kagome lattice find a 1/4 Rydberg-density window with positive topological entropy, interpreted as a quantum spin liquid phase.
Competition between intra-species repulsion and inter-species attraction in dual-species Rydberg chains induces real-space dynamical fragmentation with coexisting frozen and oscillatory sectors.
A scheme is developed to engineer strong three-body interactions in Rydberg atom lattices, allowing the effective Hamiltonian and emergent quantum phases to be modified compared to two-body-only systems.
Experiments, numerics, and analytics on Rydberg atoms in a Lieb lattice reveal density-wave phases including a fluctuation-stabilized collinear order, a quantum liquid-vapor transition with hysteresis, and kinetically constrained slow relaxation after quenches.
Empirical evidence indicates QAOA entanglement scales like fermionic Gaussian states for MaxCut instances, unlike the annealing-schedule-dependent scaling in adiabatic quantum computation.
citing papers explorer
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Systematic construction of quantum many-body scars in frustrated Rydberg arrays
A graph-theoretic method systematically constructs quantum many-body scars in frustrated Rydberg lattices via type-I and type-II mechanisms, with numerical demonstration of an exponential family of scarred trajectories on the hexagonal lattice.
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Quantum Spin Liquid State of a Dual-Species Atomic Array on Kagome Lattice
Simulations of 21-30 Rb-Cs atoms on a Kagome lattice find a 1/4 Rydberg-density window with positive topological entropy, interpreted as a quantum spin liquid phase.
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Long-lived revivals and real-space fragmentation in chains of multispecies Rydberg atoms
Competition between intra-species repulsion and inter-species attraction in dual-species Rydberg chains induces real-space dynamical fragmentation with coexisting frozen and oscillatory sectors.
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Three-body interactions in Rydberg lattices
A scheme is developed to engineer strong three-body interactions in Rydberg atom lattices, allowing the effective Hamiltonian and emergent quantum phases to be modified compared to two-body-only systems.
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Quantum criticality and nonequilibrium dynamics on a Lieb lattice of Rydberg atoms
Experiments, numerics, and analytics on Rydberg atoms in a Lieb lattice reveal density-wave phases including a fluctuation-stabilized collinear order, a quantum liquid-vapor transition with hysteresis, and kinetically constrained slow relaxation after quenches.
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Entanglement Scaling and Problem Structure in Quantum Approximate and Adiabatic Optimization Algorithms
Empirical evidence indicates QAOA entanglement scales like fermionic Gaussian states for MaxCut instances, unlike the annealing-schedule-dependent scaling in adiabatic quantum computation.