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9 March 2023 Quantum dynamics and dissipation-driven formation of long-lived entangled states in strongly-coupled many-qubit systems in solid-state nanocavities
Alexey Belyanin, Mikhail Tokman, Alex Behne, Brandon Torres, Maria Erukhimova, Yongrui Wang
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Proceedings Volume PC12446, Quantum Computing, Communication, and Simulation III; PC124460C (2023) https://doi.org/10.1117/12.2651393
Event: SPIE Quantum West, 2023, San Francisco, California, United States
Abstract
We study quantum dynamics of many-qubit systems strongly coupled to a quantized electromagnetic cavity field in the presence of decoherence and dissipation for both fermions and cavity photons, and taking into account the nonuniform cavity field and the spread of qubit transition frequencies. Analytic solutions for quantum state amplitudes and observables are derived for a broad class of open quantum systems. We show that depending on the initial state preparation, the dissipation in a cavity may drive the system into many-qubit entangled dark states that live much longer than the decay time of the cavity field.
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Alexey Belyanin, Mikhail Tokman, Alex Behne, Brandon Torres, Maria Erukhimova, and Yongrui Wang "Quantum dynamics and dissipation-driven formation of long-lived entangled states in strongly-coupled many-qubit systems in solid-state nanocavities", Proc. SPIE PC12446, Quantum Computing, Communication, and Simulation III, PC124460C (9 March 2023); https://doi.org/10.1117/12.2651393
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KEYWORDS
Entangled states
Quantum dots
Solid state electronics
Quantum communications
Plasmonics
Quantum information
Semiconductors
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