Abstract

We demonstrate experimentally a protocol of transferring nonclassical quantum properties using two pairs of quantum-correlated twin beams in the continuous variable regime. The intensity quantum correlation from one twin beam is transferred to two initially independent idler beams with the help of a displacement transformation. It makes two originally independent beams exhibit an intensity quantum correlation of $0.8\mathrm{dB}$ below shot-noise level.

© 2007 Optical Society of America

Improvements in the observed intensity correlation of optical parametric oscillator twin beams

J. Mertz, T. Debuisschert, A. Heidmann, C. Fabre, and E. Giacobino
Opt. Lett. 16(16) 1234-1236 (1991)

Experimental demonstration of quantum entanglement between frequency-nondegenerate optical twin beams

Xiaolong Su, Aihong Tan, Xiaojun Jia, Qing Pan, Changde Xie, and Kunchi Peng
Opt. Lett. 31(8) 1133-1135 (2006)

Single-beam noise characteristics of quantum-correlated twin beams

Yun Zhang, Katsuyuki Kasai, and Kazuhiro Hayasaka
J. Opt. Soc. Am. B 21(5) 1044-1049 (2004)

Observation of quantum-correlated twin beams in cascaded nonlinear interactions

Salvatore Castrignano, Iolanda Ricciardi, Pasquale Maddaloni, Paolo De Natale, Stefan Wabnitz, and Maurizio De Rosa
Opt. Lett. 49(7) 1733-1736 (2024)

Observation of twin-beam-type quantum correlation in optical fiber

Jay E. Sharping, Marco Fiorentino, and Prem Kumar
Opt. Lett. 26(6) 367-369 (2001)