Which optical processes are suitable to make probabilistic single photon sources for quantum cryptography?

Amit Verma; Anirban Pathak

doi:10.1117/12.793668

3 September 2008 Which optical processes are suitable to make probabilistic single photon sources for quantum cryptography?

Amit Verma, Anirban Pathak

Author Affiliations +

Proceedings Volume 7072, Optics and Photonics for Information Processing II; 70720R (2008) https://doi.org/10.1117/12.793668
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

Single photon sources to be used in quantum cryptography must show higher order antibunching (HOA). HOA is reported by us in several many wave mixing processes. In the present work we have investigated the possibility of observing HOA in multiwave mixing processes in general. The generalized Hamiltonian is solved for several particular cases in Heisenberg picture and possibility of observing HOA is investigated with the help of criterion of Pathak and Garcia. The generalized interaction Hamiltonian of a multiwave mixing process is considered as (a†l bm cn + Hermitian conjugate) where 'a', 'b' and 'c' are the annihilation operators corresponding to pump, Stokes and Signal modes respectively. Several particular cases of the generalized Hamiltonian are solved with the help of short time approximation technique and HOA is reported for pump modes of different multiwave mixing processes. It is also found that HOA can not be observed for the signal and stokes modes in of the cases studied here.

Citation Download Citation

Amit Verma and Anirban Pathak "Which optical processes are suitable to make probabilistic single photon sources for quantum cryptography?", Proc. SPIE 7072, Optics and Photonics for Information Processing II, 70720R (3 September 2008); https://doi.org/10.1117/12.793668

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available