Universality of sudden death of entanglement
| Autor: | Reginaldo de Jesus Napolitano, Paulo E. M. F. Mendonca, Felipe F. Fanchini |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Nuclear and High Energy Physics
Quantum dynamics General Physics and Astronomy Statistical and Nonlinear Physics Quantum Physics Quantum entanglement Constructive Sudden death Theoretical Computer Science Universality (dynamical systems) Computational Theory and Mathematics Qubit Quantum mechanics Almost surely Zero temperature Mathematical Physics Mathematics Mathematical physics |
| Zdroj: | Quantum Information and Computation. 11:677-694 |
| ISSN: | 1533-7146 |
| DOI: | 10.26421/qic11.7-8-9 |
| Popis: | We present a constructive argument to demonstrate the universality of the sudden death of entanglement in the case of two non-interacting qubits, each of which generically coupled to independent Markovian environments at zero temperature. Conditions for the occurrence of the abrupt disappearance of entanglement are determined and, most importantly, rigourously shown to be \emph{almost} always satisfied: Dynamical models for which the sudden death of entanglement does not occur are seen to form a highly idealized zero-measure subset within the set of all possible quantum dynamics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|