Results 21 to 30 of about 25,760 (283)
Entropy, 2021 In this paper, we study a Hamiltonian system constituted by two coupled two-level atoms (qubits) interacting with a nonlinear generalized cavity field. The nonclassical two-qubit correlation dynamics are investigated using Bures distance entanglement and
A.-B. A. Mohamed +3 more
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Initial conditions and entanglement sudden death [PDF]
Physics Letters A, 2012 5 ...
Qian, Xiao-Feng, Eberly, J. H.
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Физика волновых процессов и радиотехнические системы, 2021 In this work, the authors investigated the dynamics of entanglement of two identical two-level atoms (qubits) in the framework of the two-photon double Jaynes–Cummings model, taking into account the detuning between atoms and the double frequency of the ...
Rodion K. Zakharov, Evgeny K. Bashkirov
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Universality of sudden death of entanglement [PDF]
Quantum Information and Computation, 2011 We present a constructive argument to demonstrate the universality of the sudden death of entanglement in the case of two non-interacting qubits, each of which generically coupled to independent Markovian environments at zero temperature. Conditions for the occurrence of the abrupt disappearance of entanglement are determined and, most importantly ...
Fanchini, F. F. +2 more
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Physical Review Research, 2023 Entanglement is known to decay even in isolated systems, an effect attributed to spontaneous emission. This fragility of entanglement can be exacerbated by entanglement sudden death (ESD), where entanglement drops to zero abruptly within a finite time ...
Songbo Xie +2 more
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Alexandria Engineering Journal, 2023 This paper explores the dynamics of two spatially separated superconducting flux qubits, initially in a maximally correlated state, without mutual interaction.
A.-B.A. Mohamed +3 more
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Entanglement in nonlinear two-qibit Tavis — Cummings model
Вестник Самарского университета: Естественнонаучная серия, 2023 In this work, we have studied the dynamics of entanglement of two identical superconducting qubits resonantly interacting with the one-mode field of a coplanar microwave cavity without loss through single-photon transitions in the presence of third- and ...
Rodion K. Zakharov, Eugene K. Bashkirov
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Dynamics of entanglement of atoms with two-photon transitions induced by a thermal field [PDF]
Компьютерная оптика, 2020 In this paper, we investigate the entanglement between two two-level atoms non-resonantly in-teracting with a thermal field of a lossless one-mode resonator via degenerate two-photon transi-tions.
Eugene Bashkirov
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Entanglement Research for the Coupled Superconducting Phase Qubit and a Two-Level System
Advances in Condensed Matter Physics, 2020 Entanglement can exist not only in the microscopic system (e.g., atom, photon, and ion trap) but also in macroscopic systems. According to recent research, entanglement can be achieved and controlled in superconducting devices.
Jianxin Shi
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Frontiers in Quantum Science and Technology, 2023 We investigate the dynamics of a maximally entangled mixed state (MEMS) under the action of correlated noise channels. The channel acts in a way that its successive uses are correlated. We have studied the MEMS properties, including quantum coherence and
Natasha Awasthi +2 more
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