Certain Hamiltonian deformations preserve the Krylov subspace, yielding generalized Toda equations and allowing imaginary-time dynamics to be recast as real-time unitary evolution, with applications to thermodynamic states and supersymmetric systems.
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Nonlinear Gross-Pitaevskii qubits enable quantum Otto engines with significantly higher efficiency than linear engines.
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Krylov Complexity Under Hamiltonian Deformations and Toda Flows
Certain Hamiltonian deformations preserve the Krylov subspace, yielding generalized Toda equations and allowing imaginary-time dynamics to be recast as real-time unitary evolution, with applications to thermodynamic states and supersymmetric systems.
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Quantum thermodynamics of Gross-Pitaevskii qubits
Nonlinear Gross-Pitaevskii qubits enable quantum Otto engines with significantly higher efficiency than linear engines.