Long-range interactions in quantum spin chains enable the Efimov effect for magnons by inducing continuous scale invariance in two-body states that becomes discrete in the three-body problem.
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A closed-form resource estimation tool for concatenated quantum error correction reveals that magic-state operations rarely dominate qubit costs, with general optimizations providing orders-of-magnitude larger reductions than magic-specific ones.
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Efimov Effect in Long-range Quantum Spin Chains
Long-range interactions in quantum spin chains enable the Efimov effect for magnons by inducing continuous scale invariance in two-body states that becomes discrete in the three-body problem.
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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.