A hybrid feedback algorithm combining imaginary-time evolution and time-rescaling prepares the TFD ground state of the Maldacena-Qi model with near-unit fidelity.
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The frame potential of a disordered Tomonaga-Luttinger liquid decays as a power law at early times and saturates to a late-time plateau controlled by a single coupling parameter.
A new quantum dynamical entropy rate for mesoscopic monitoring is computed exactly from two-point functions and is conjectured to obey a universal Planckian bound.
The traversable wormhole transmission signal in coupled SYK models persists with less than 1.1% variation after 98% random coupling deletion, showing it is controlled by inter-system coupling alone.
Averaging the time-evolution operator over disorder restores permutation symmetry in the effective dynamical map for linear observables, enabling polynomial-scaling simulations of large disordered spin systems via short-time and weak-disorder expansions.
citing papers explorer
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Preparing a Thermofield Double State with Feedback Quantum Algorithms
A hybrid feedback algorithm combining imaginary-time evolution and time-rescaling prepares the TFD ground state of the Maldacena-Qi model with near-unit fidelity.
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Solvable Random Unitary Dynamics in a Disordered Tomonaga-Luttinger Liquid
The frame potential of a disordered Tomonaga-Luttinger liquid decays as a power law at early times and saturates to a late-time plateau controlled by a single coupling parameter.
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Planckian bound on quantum dynamical entropy
A new quantum dynamical entropy rate for mesoscopic monitoring is computed exactly from two-point functions and is conjectured to obey a universal Planckian bound.
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No chaos required: traversable wormhole signals survive 98% coupling deletion
The traversable wormhole transmission signal in coupled SYK models persists with less than 1.1% variation after 98% random coupling deletion, showing it is controlled by inter-system coupling alone.
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Exploiting emergent symmetries in disorder-averaged quantum dynamics
Averaging the time-evolution operator over disorder restores permutation symmetry in the effective dynamical map for linear observables, enabling polynomial-scaling simulations of large disordered spin systems via short-time and weak-disorder expansions.
- Non-identical anyonic algebras from compact-field quantum geometry