In a driven non-integrable Ising chain, subsystem reduced density matrices and work statistics both detect the frequency-dependent crossover from prethermal to infinite-temperature Floquet regimes.
Measuring the characteristic function of the work distribution
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abstract
We propose an interferometric setting for the ancilla-assisted measurement of the characteristic function of the work distribution following a time-dependent process experienced by a quantum system. We identify how the configuration of the effective interferometer is linked to the symmetries enjoyed by the Hamiltonian ruling the process and provide the explicit form of the operations to implement in order to accomplish our task. We finally discuss two physical settings, based on hybrid opto-/electro-mechanical devices, where the theoretical proposals discussed in our work could find an experimental demonstration.
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quant-ph 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Subsystem Thermalization and Work Statistical Characterizations of Floquet Dynamics
In a driven non-integrable Ising chain, subsystem reduced density matrices and work statistics both detect the frequency-dependent crossover from prethermal to infinite-temperature Floquet regimes.