Entanglement in quantum catastrophes
Journal Article
·
· Physical Review. A
- Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden (Netherlands)
We classify entanglement singularities for various two-mode bosonic systems in terms of catastrophe theory. Employing an abstract phase-space representation, we obtain exact results in limiting cases for the entropy in cusp, butterfly, and two-dimensional catastrophes. We furthermore use numerical results to extract the scaling of the entropy with the nonlinearity parameter, and discuss the role of mixing entropies in more complex systems.
- OSTI ID:
- 20717867
- Journal Information:
- Physical Review. A, Vol. 71, Issue 6; Other Information: DOI: 10.1103/PhysRevA.71.062302; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Entanglement and localization of a two-mode Bose-Einstein condensate
Entanglement entropy, decoherence, and quantum phase transitions of a dissipative two-level system
Entanglement in bipartite pure states of an interacting boson gas obtained by local projective measurements
Journal Article
·
Mon Feb 15 00:00:00 EST 2010
· Annals of Physics (New York)
·
OSTI ID:20717867
+1 more
Entanglement entropy, decoherence, and quantum phase transitions of a dissipative two-level system
Journal Article
·
Mon Sep 15 00:00:00 EDT 2008
· Annals of Physics (New York)
·
OSTI ID:20717867
Entanglement in bipartite pure states of an interacting boson gas obtained by local projective measurements
Journal Article
·
Thu Sep 15 00:00:00 EDT 2011
· Physical Review. A
·
OSTI ID:20717867
+1 more