Results 171 to 180 of about 26,696 (215)
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Schemes to avoid entanglement sudden death of decohering two qubit system
European Physical Journal D : Atomic, Molecular and Optical Physics, 2018We investigate the entanglement dynamics of two interacting qubits in a common vacuum environment. The inevitable environment interaction leads to entanglement sudden death (ESD) in a two qubit entangled system.
Namitha Chathavalappil, S. Satyanarayana
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Sudden Death of Entanglement in a Two-Qubit System Coupled to a Small Environment
Rochester Conference on Coherence and Quantum Optics (CQO-11), 2019We study the entanglement dynamics of two interacting qubits, having only one of them coupled to a small environment (single mode thermal field). We verify the existence of sudden death of entanglement in the system.
G. L. Deçordi, A. Vidiella-Barranco
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Controlling Sudden Birth and Sudden Death of Entanglement at Finite Temperature
International Journal of Theoretical Physics, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
C. Shan +6 more
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Sudden death of entanglement of a quantum model
Chinese Physics, 2007In this paper the so-called sudden death effect of entanglement is investigated in a quantum model. The results show that one can expect the resurrection of the original entanglement to occur in a periodic way following each sudden death event. The length of the time interval for the zero entanglement depends not only on the degree of entanglement of ...
Guo-Feng Zhang
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The sudden death of entanglement in constructed Yang–Baxter systems
Quantum Information Processing, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
T. Hu, Chunfang Sun, K. Xue
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Sudden birth and sudden death of entanglement
2011We discuss a simple model for creation of entanglement in a system composed of two two-level atoms interacting with a common environment. The role of the environment in entangling and disentangling of the atoms is explored. We demonstrate how the spontaneous decay of an initial excitation of the system can create a transient entanglement between the ...
Ficek Zbigniew, Tanaś Ryszard
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Sudden death and sudden birth of entanglement
Quantum Dynamics and Information, 2010by concurrence. Phenomena of sudden death, revival, and sudden birth of entanglement are discussed. It is shown that when the atoms behave collectively and the reservoir is the vacuum, the entanglement evolution exhibits quite a rich structure. For thermal reservoir with non-zero mean number of photons this structure is gradually degraded as the ...
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Pre-management of Entanglement Sudden Death
The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting, 2013We report a summary of our work on management of entanglement sudden death (ESD) through initial conditions. ESD phases are shown for a generic two-qubit system that undergoes local but unbalanced amplitude damping dissipations.
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Control of entanglement sudden death by Kerr medium
Chinese Physics B, 2008The entanglement dynamics of system, where atoms A and B interact with single mode cavity fields a and b respectively, is studied. The interaction between atom A and cavity a may be described by using the typical Jaynes–Cummings model, while that between the atom B and cavity b filled with a Kerr medium is of a two-photon process. For a certain initial
Zheng Qiang +2 more
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Delayed sudden birth and sudden death of entanglement in Josephson-charge qubits
Laser Physics, 2009Distinctive features of the entanglement dynamics of a circuit containing two-coupled superconducting charge qubits are explored. The striking effects of junction coupling on the entanglement are presented in terms of the concurrence. We also point out the importance effects of initial state selection for obtaining different features of entanglement ...
M. Abdel-Aty
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