https://doi.org/10.1140/epjd/e2006-00246-4
Entanglement dynamics under decoherence: from qubits to qudits
1
Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany
2
Department of Physics, Faculty of Science, The Australian National University, Canberra, ACT, 0200, Australia
3
Department of Physics, Harvard University, Cambridge, MA, 02138, USA
Corresponding author: a andre.carvalho@anu.edu.au
Received:
21
August
2006
Revised:
10
October
2006
Published online:
15
November
2006
We investigate the time evolution of entanglement for bipartite systems of arbitrary dimensions under the influence of decoherence. For qubits, we determine the precise entanglement decay rates under different system-environment couplings, including finite temperature effects. For qudits, we show how to obtain upper bounds for the decay rates and also present exact solutions for various classes of states.
PACS: 03.67.-a – Quantum information / 03.67.Mn – Entanglement production, characterization, and manipulation / 03.65.Yz – Decoherence; open systems; quantum statistical methods
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2006
