Time-evolution of entanglement and quantum discord of bipartite systems subject to 1/f^α noise
arXiv:1305.7026 · doi:10.1109/ICNF.2013.6578952
Abstract
We study the dynamics of quantum correlations for two non interacting qubits initially prepared in a maximally entangled state and then coupled with an external environment characterized by a noise spectrum of the form 1/f^α. The noise spectrum is due to the interaction of each qubit with a collection of N_f classical fluctuators with fixed switching rates. We find that, depending on the characteristic of the noise spectrum considered, both entanglement and quantum discord display either a monotonic decay or the phenomena of sudden death and revivals.
5 pages, 2 figures. arXiv admin note: text overlap with arXiv:1212.1484 Proceedings of International Conference on Noise and Fluctuation 2013
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- Quantum correlations of identical particles subject to classical environmental noise
- Decoherence Effects in a Three-Level System under Gaussian Process
- Probing multipartite entanglement, coherence and quantum information preservation under classical Ornstein-Uhlenbeck noise