Quantum-interference-assisted photon blockade in a cavity via parametric interactions

Bijita Sarma and Amarendra K. Sarma
Phys. Rev. A 96, 053827 – Published 13 November 2017

Abstract

We propose a scheme to achieve a strong photon antibunching with a degenerate optical parametric amplifier coupled to a cavity via unconventional photon blockade. The photon blockade occurs as a result of the suppression of two-photon excitation due to a quantum interference effect between different transition paths. Via analytical calculations, we find out the conditions for optimized photon antibunching in terms of parametric gain and the parametric amplifier pump phase. Calculations of second-order correlation function demonstrate strong photon antibunching. The numerical results are compared with the analytical results and both are in complete agreement. Under the optimal parameters, the system can be used to generate sub-Poissonian light.

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  • Received 17 August 2017

DOI:https://doi.org/10.1103/PhysRevA.96.053827

©2017 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

Bijita Sarma* and Amarendra K. Sarma

  • Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India

  • *s.bijita@iitg.ernet.in
  • aksarma@iitg.ernet.in

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Issue

Vol. 96, Iss. 5 — November 2017

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