Title :
Time-evolution of entanglement and quantum discord of bipartite systems subject to 1/fα noise
Author :
Benedetti, C. ; Paris, Matteo G. A. ; Buscemi, F. ; Bordone, Paolo
Author_Institution :
Dipt. di Fis., Univ. degli Studi di Milano, Milan, Italy
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/fα. The noise spectrum is due to the interaction of each qubit with a collection of Nf 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.
Keywords :
1/f noise; quantum entanglement; 1/fα noise; bipartite systems; classical fluctuators; entangled state; entanglement; monotonic decay; noise spectrum; noninteracting qubits; quantum correlations; quantum discord; time-evolution; Correlation; Couplings; Electronic mail; Noise; Quantum entanglement; Switches;
Conference_Titel :
Noise and Fluctuations (ICNF), 2013 22nd International Conference on
Conference_Location :
Montpellier
Print_ISBN :
978-1-4799-0668-0
DOI :
10.1109/ICNF.2013.6578952