Entanglement generation via scattering of two particles with hard-core repulsion

Journal Article · Mon May 15 00:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20787230

Schmueser, Frank; Janzing, Dominik ^[1]

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1. Institut fuer Algorithmen und Kognitive Systeme, Universitaet Karlsruhe, Am Fasanengarten 5, 76131 Karlsruhe (Germany)

We analyze the entanglement generation in a one-dimensional scattering process. The two colliding particles have a Gaussian wave function and interact by hard-core repulsion. In our analysis, results on the entanglement of two-mode Gaussian states are used. The produced entanglement depends in a nonobvious way on the ratio of masses and initial widths for the two particles. The asymptotic wave function of the two particles and its associated ellipse yield additional geometric insight into these conditions. We discuss the difference from the quantitative analysis of the amount of entanglement generated by beam splitters with squeezed light.

• OSTI ID: 20787230
• Journal Information: Physical Review. A, Vol. 73, Issue 5; Other Information: DOI: 10.1103/PhysRevA.73.052313; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ENERGY LEVELS
GAUSSIAN PROCESSES
INFORMATION THEORY
ONE-DIMENSIONAL CALCULATIONS
POTENTIAL SCATTERING
QUANTUM ENTANGLEMENT
VISIBLE RADIATION
WAVE FUNCTIONS