Generating and storing nonclassical correlations in a warm Rb vapor cell with buffer gas

Mark Bashkansky; Fredrik K. Fatemi; Igor Vurgaftman

doi:10.1117/12.918306

8 May 2012 Generating and storing nonclassical correlations in a warm Rb vapor cell with buffer gas

Mark Bashkansky, Fredrik K. Fatemi, Igor Vurgaftman

Proceedings Volume 8400, Quantum Information and Computation X; 840013 (2012) https://doi.org/10.1117/12.918306
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Quantum memory is regarded as one of the essential components in the fields of quantum computing and quantum communication. Warm atomic vapor cells for quantum memory, as originally described in DLCZ (for Duan, Lukin, Cirac, and Zoller) protocol, are appealing due to the perceived reduction in experimental complexity and commercial availability. However, published studies on quantum memory using warm vapor cells were performed under widely dissimilar experimental conditions and reported ambiguous results. In order for the memory to exhibit non-classical behavior to a high degree of certainty, the cross-correlation value between the Stokes and anti-Stokes photons needs to be greater than two. In this work we demonstrate quantum memory with cross-correlation value between the Stokes and anti-Stokes photons greater than two lasting for 4 μs using warm Rb vapor with buffer gas for nearly co-propagating write and read beams.

Citation Download Citation

Mark Bashkansky, Fredrik K. Fatemi, and Igor Vurgaftman "Generating and storing nonclassical correlations in a warm Rb vapor cell with buffer gas", Proc. SPIE 8400, Quantum Information and Computation X, 840013 (8 May 2012); https://doi.org/10.1117/12.918306

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