Two-color photon correlations of the light scattered by a quantum dot

M. Peiris, B. Petrak, K. Konthasinghe, Y. Yu, Z. C. Niu, and A. Muller
Phys. Rev. B 91, 195125 – Published 18 May 2015

Abstract

Two-color second-order correlations of the light scattered near-resonantly by a quantum dot were measured by means of spectrally filtered coincidence detection. The effects of filter frequency and bandwidth were studied under monochromatic laser excitation, and a complete two-photon spectrum was reconstructed. The two-photon spectrum exhibits a rich structure associated with both real and virtual two-photon transitions down the “dressed states” ladder. Photon pairs generated via virtual transitions are found to violate the Cauchy-Schwarz inequality by a factor of 60. Our experiments are well described by the theoretical expressions obtained by del Valle et al. [Phys. Rev. Lett. 109, 183601 (2012)] via time- and normally-ordered correlation functions.

  • Figure
  • Figure
  • Figure
  • Received 15 September 2014
  • Revised 24 April 2015

DOI:https://doi.org/10.1103/PhysRevB.91.195125

©2015 American Physical Society

Authors & Affiliations

M. Peiris1, B. Petrak1, K. Konthasinghe1, Y. Yu2,3, Z. C. Niu2,3, and A. Muller1,*

  • 1Physics Department, University of South Florida, Tampa, Florida
  • 2State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
  • 3Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, China

  • *mullera@usf.edu

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 91, Iss. 19 — 15 May 2015

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×