A Krylov-space approach provides exact expressions for the Lieb-Robinson velocity and quantum speed limit in the single-excitation subspace of inhomogeneous spin ensembles, revealing strong dependence on the resonance frequency distribution.
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Symmetries of potentials in many-body quantum kicked rotors at resonance produce three regimes of wavepacket spreading and bipartite entanglement entropy: quadratic growth, period-2 oscillation, or hybrid.
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Quantum information spreading in inhomogeneous spin ensembles
A Krylov-space approach provides exact expressions for the Lieb-Robinson velocity and quantum speed limit in the single-excitation subspace of inhomogeneous spin ensembles, revealing strong dependence on the resonance frequency distribution.
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Dynamics of wavepackets and entanglement in many-body kicked rotors under quantum resonance
Symmetries of potentials in many-body quantum kicked rotors at resonance produce three regimes of wavepacket spreading and bipartite entanglement entropy: quadratic growth, period-2 oscillation, or hybrid.
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