Results 11 to 20 of about 6,416 (187)
Scientific Reports, 2021 We propose a photonic procedure using cross-Kerr nonlinearities (XKNLs) to encode single logical qubit information onto four-photon decoherence-free states.
Jino Heo, Seong-Gon Choi
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Decoherence control by quantum decoherence itself [PDF]
Scientific Reports, 2015 AbstractWe propose a general approach of protecting a two-level system against decoherence via quantum engineering of non-classical multiple superpositions of coherent states in a non-Markovian reservoir. The scheme surprisingly only uses the system-environment interaction responsible for the decoherence and projective measurements of the two-level ...
Katarzyna Roszak +2 more
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Journal of Cosmology and Astroparticle Physics, 2022 Abstract In quantum information theory, quantum discord has been proposed as a tool to characterise the presence of “quantum correlations” between the subparts of a given system. Whether a system behaves quantum-mechanically or classically is believed to be impacted by the phenomenon of decoherence, which originates from the unavoidable ...
Martin, Jerome +2 more
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Journal of Statistical Physics, 1998 We study a general quantum system interacting with environment modeled by the bosonic heat bath of Caldeira and Leggett type. General interaction Hamiltonians are considered that commute with the system's Hamiltonian so that there is no energy exchange between the system and bath.
Mozyrsky, Dima, Privman, Vladimir
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Gravitational decoherence [PDF]
Classical and Quantum Gravity, 2017 Abstract We discuss effects of loss of coherence in low energy quantum systems caused by or related to gravitation, referred to as gravitational decoherence. These effects, resulting from random metric fluctuations, for instance, promise to be accessible by relatively inexpensive table-top experiments, way before ...
Angelo Bassi +2 more
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Quantum control in open and periodically driven systems
Advances in Physics: X, 2021 Quantum technology resorts to efficient utilization of quantum resources to realize technique innovation. The systems are controlled such that their states follow the desired manners to realize different quantum protocols. However, the decoherence caused
Si-Yuan Bai +3 more
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SPIE Proceedings, 2003 Methods for quantifying environmentally induced decoherence in quantum systems are investigated. We formulate criteria for measuring the degree of decoherence and consider several representative examples, including a spin interacting with the modes of a bosonic, e.g., phonon, bath.
Fedichkin, L, Fedorov, A, Privman, V
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Decoherence and Landauer’s principle in qubit-cavity quantum-field-theory interaction
European Physical Journal C: Particles and Fields, 2023 We consider quantum decoherence and Landauer’s principle in qubit-cavity quantum field theory (QFT) interaction, treating the qubit as the system and cavity QFT as the environment. In particular, we investigate the changes that occur in the system with a
Hao Xu, Si Yu Chen, Yen Chin Ong
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Stabilizer codes for open quantum systems
Scientific Reports, 2023 The Lindblad master equation describes the evolution of a large variety of open quantum systems. An important property of some open quantum systems is the existence of decoherence-free subspaces.
Francisco Revson F. Pereira +2 more
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Deconstructing decoherence [PDF]
Physical Review A, 1997 13 two-column pages, 3 embedded ...
Anglin, J. R., Paz, J. P., Zurek, W. H.
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