Photon-number entangled states generated in Kerr media with optical parametric pumping

Journal Article · Sun May 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.052326· OSTI ID:21546743

Kowalewska-Kudlaszyk, A; Leonski, W; Perina, Jan Jr ^[1]

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1. Nonlinear Optics Division, Department of Physics, Adam Mickiewicz University, Umultowska 85, PL-61-614 Poznan (Poland)

Two nonlinear Kerr oscillators mutually coupled by parametric pumping are studied as a source of states entangled in photon numbers. Temporal evolution of entanglement quantified by negativity shows the effects of sudden death and birth of entanglement. Entanglement is preserved even in asymptotic states under certain conditions. The role of reservoirs at finite temperature in entanglement evolution is elucidated. Relation between generation of entangled states and violation of Cauchy-Schwartz inequality for oscillator intensities is found.

• OSTI ID: 21546743
• Journal Information: Physical Review. A, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevA.83.052326; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASYMPTOTIC SOLUTIONS
NONLINEAR PROBLEMS
OPTICAL PUMPING
OSCILLATORS
PHOTONS
QUANTUM ENTANGLEMENT
QUANTUM STATES
BOSONS
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
MASSLESS PARTICLES
MATHEMATICAL SOLUTIONS
PUMPING