Calculation of the convex roof for an open entangled harmonic oscillator system

Journal Article · Sat May 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.052304· OSTI ID:21408783

Landau, Mayer A; Stroud, Jr, C R ^[1]

---

1. Institute of Optics, University of Rochester, Rochester, New York 14627 (United States)

We explicitly calculate the time dependence of entanglement via the convex roof extension for a system of noninteracting harmonic oscillators. These oscillators interact only indirectly with each other by way of a zero-temperature bath. The initial state of the oscillators is taken to be that of an entangled Schroedinger-cat state. This type of initial condition leads to superexponential decay of the entanglement when the initial state has the same symmetry as the interaction Hamiltonian.

• OSTI ID: 21408783
• Journal Information: Physical Review. A, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevA.81.052304; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DECAY
HAMILTONIANS
HARMONIC OSCILLATORS
INTERACTIONS
OSCILLATORS
QUANTUM ENTANGLEMENT
SYMMETRY
TIME DEPENDENCE
ELECTRONIC EQUIPMENT
EQUIPMENT
MATHEMATICAL OPERATORS
QUANTUM OPERATORS