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Quantum deficits and correlations of two superconducting charge qubits
- Source :
-
Physica C . Feb2009, Vol. 469 Issue 2/3, p111-115. 5p. - Publication Year :
- 2009
-
Abstract
- Abstract: Motivated by recent experiments [Y.A. Pashkin, T. Yamamoto, O. Astafiev, Y. Nakamura, D.V. Averin, J.S. Tsai, Nature 421 (2003) 823] that show coherent oscillations of two superconducting qubits system, we consider a system of two charge qubits coupled to a common stripline microwave resonator. We discuss the separable and entangled behavior as well as the quantum and classical information deficits. Numerical computation of these quantities is performed for several regimes. We find that for less entangled states the partner can extract much more information by means of classical communication and local operations. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09214534
- Volume :
- 469
- Issue :
- 2/3
- Database :
- Academic Search Index
- Journal :
- Physica C
- Publication Type :
- Academic Journal
- Accession number :
- 36478055
- Full Text :
- https://doi.org/10.1016/j.physc.2008.12.011