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Two-level system hyperpolarization with a quantum Szilard engine

By implementing a quantum Szilard engine, we show that a superconducting granular aluminum fluxonium qubit is coupled weakly to a two-level system (TLS) environment of unknown physical origin. Since the TLSs are much longer lived than the qubit, non-exponential relaxation and non-Poissonian quantum...

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Autor principal: Spiecker, Martin
Format: Online
Idioma:anglès
Publicat: KIT Scientific Publishing 2026
Matèries:
Granular aluminum
Granulares Aluminium
Hyperpolarisation
Hyperpolarization
Superconducting qubits
Supraleitende Qubits
Szilard engine
Szilards
Two-level systems
Wärmekraftmaschine
Zwei-Nivesu-Systeme
thema EDItEUR::P Mathematics and Science::PH Physics::PHM Atomic and molecular physics
Accés en línia:ONIX_20260519T105721_9783731514152_11
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Sumari:By implementing a quantum Szilard engine, we show that a superconducting granular aluminum fluxonium qubit is coupled weakly to a two-level system (TLS) environment of unknown physical origin. Since the TLSs are much longer lived than the qubit, non-exponential relaxation and non-Poissonian quantum jumps can be observed. These dynamics can be modeled using the stochastic Schrödinger equation and the Solomon equations.

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