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This research addresses a critical bottleneck in quantum hardware by introducing the Dressed-State Master Equation to accurately model decoherence in strongly coupled optomechanical systems. By demonstrating that reservoir parameters like squeezed vacuum states can effectively suppress dephasing, even at elevated temperatures, the study offers essential pathways for engineering stable qubits and extending coherence times.
Decoherence control of a single-photon optomechanical system in phase-sensitive reservoirs
arXiv:2111.05554v5 Announce Type: replace Abstract: Recent advancements in strong single-photon optomechanical coupling also demand a deeper understanding of environmental interactions in this regime.In this regime the standard Lindblad master equation, which is derived in the eigenbasis of the bare optical and mechanical modes, misassigns the dephasing rate. We therefore use the Dressed-State Master Equation (DSME), which is formulated in the eigenbasis of the strongly coupled photon-phonon Hamiltonian, the dressed states of the system. This work investigates the impact of squeezed vacuum and thermal reservoirs on the decoherence of cavity photon Fock states in the strong coupling regime. We demonstrate that decoherence can be effectively controlled by tuning reservoir parameters, with the control mediated through a cavity dephasing term that becomes significant at high temperatures. The findings presented provide critical insights into reservoir engineering for precise control of quantum decoherence, advancing the understanding of strongly coupled optomechanical systems in engineered environments.
Abstract:Recent advancements in strong single-photon optomechanical coupling also demand a deeper understanding of environmental interactions in this this http URL this regime the standard Lindblad master equation, which is derived in the eigenbasis of the bare optical and mechanical modes, misassigns the dephasing rate. We therefore use the Dressed-State Master Equation (DSME), which is formulated in the eigenbasis of the strongly coupled photon-phonon Hamiltonian, the dressed states of the system. This work investigates the impact of squeezed vacuum and thermal reservoirs on the decoherence of cavity photon Fock states in the strong coupling regime. We demonstrate that decoherence can be effectively controlled by tuning reservoir parameters, with the control mediated through a cavity dephasing term that becomes significant at high temperatures. The findings presented provide critical insights into reservoir engineering for precise control of quantum decoherence, advancing the understanding of strongly coupled optomechanical systems in engineered environments.
Quantum Physics (quant-ph); Optics (physics.optics)
arXiv:2111.05554 [quant-ph]
(or arXiv:2111.05554v5 [quant-ph] for this version)
Full text under the publisher's open licence · 160 words
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