Bright and dark periods in the entanglement dynamics of interacting qubits in contact with the environment

• Published in: Journal of physics. B, Atomic, molecular, and optical physics Vol. 42; no. 14; pp. 141003 - 141003 (5)
• Main Authors: Das, Sumanta, Agarwal, G S
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 28.07.2009; Institute of Physics
• Subjects: Classical and quantum physics: mechanics and fields; Exact sciences and technology; Foundations, theory of measurement, miscellaneous theories (including aharonov-bohm effect, bell inequalities, berry's phase); Physics; Quantum computation; Quantum information; Quantum mechanics; Quantum decoherence; Quantum computing; Quantum information; Quantum entanglement

Interaction among qubits is the basis to many quantum logic operations. We report how such inter-qubit interactions can lead to new features, in the form of bright and dark periods in the entanglement dynamics of two qubits subject to environmental perturbations. These features are seen to be precur...