Partitioning optical solitons for generating entangled light beams

• Published in: Optics communications Vol. 194; no. 4; pp. 393 - 399
• Main Authors: Schmidt, Eduard, Knöll, Ludwig, Welsch, Dirk-Gunnar
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.07.2001; Elsevier Science
• Subjects: Classical and quantum physics: mechanics and fields; Entanglement; Exact sciences and technology; Foundations, theory of measurement, miscellaneous theories (including aharonov-bohm effect, bell inequalities, berry's phase); Fundamental areas of phenomenology (including applications); Nonclassical correlation; Nonclassical field states; squeezed, antibunched and sub-poissonian states; operational definitions of the phase of the field; phase measurements; Nonlinear optics; Optical soliton; Optical solitons; nonlinear guided waves; Optics; Physics; Quantum information; Quantum mechanics; Quantum optics; Quantum soliton; 42.65.Tg; 42.50.−p; 03.67.−a; Quantum information; Entanglement; Nonclassical correlation; Quantum soliton; Optical soliton; Beam splitting; Quantum correlation; Quantum entanglement; Squeezed states; Optical solitons; Theoretical study; Quantum optics; Nonlinear optics
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/S0030-4018(01)01286-X

It is shown that the two beams generated by bipartition of an optical soliton are entangled. The amount of entanglement obtained by bipartition of an N-bound soliton ( N=2,3) can be substantially larger than that in bipartition of the fundamental soliton ( N=1). An analysis of the mode structure of the entangled beams shows that typically N modes in each beam contribute to the entanglement. In particular, partitioning of the fundamental soliton effectively produces two-mode squeezed light.