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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Hexapartite Entanglement in an above-Threshold Optical Parametric Oscillator

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Barbosa, F. A. S. [1] ; Coelho, A. S. [2, 3] ; Munoz-Martinez, L. F. [4] ; Ortiz-Gutierrez, L. [5] ; Villar, A. S. [6] ; Nussenzveig, P. [7] ; Martinelli, M. [7]
Total Authors: 7
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[2] Univ Fed Piaui, Dept Engn Mecan, BR-64049550 Teresina, Piaui - Brazil
[3] Ctr Univ UNINOVAFAPI, Dept Engn, BR-64073505 Teresina, Piaui - Brazil
[4] Univ Sinu Elias Bechara Zainum, Dept Ciencias Basicas, 1w 38-153, Cordoba - Colombia
[5] Univ Sao Paulo, Inst Fis Sao Carlos, POB 369, BR-13560970 Sao Carlos, SP - Brazil
[6] Amer Phys Soc, 1 Res Rd, Ridge, NY 11961 - USA
[7] Univ Sao Paulo, Inst Fis, POB 66318, BR-05315970 Sao Paulo - Brazil
Total Affiliations: 7
Document type: Journal article
Source: Physical Review Letters; v. 121, n. 7 AUG 13 2018.
Web of Science Citations: 6

We demonstrate, theoretically and experimentally, the generation of hexapartite modal entanglement by the optical parametric oscillator (OPO) operating above the oscillation threshold. We show that the OPO generates a rich structure of entanglement among sets of six optical sideband modes interacting through the nonlinear crystal. The class of quantum states thus produced can be controlled by a single parameter, the power of the external laser that pumps the system. Our platform allows for the generation of massive entanglement among many optical modes with well defined hut vastly different frequencies, potentially bridging nodes of a multicolor quantum network. (AU)

FAPESP's process: 10/08448-2 - Quantum information with continuous variables of atoms and light
Grantee:Paulo Alberto Nussenzveig
Support type: Research Projects - Thematic Grants