Correcting lossy channels with heralded amplification

Sergei Slussarenko

doi:10.1117/12.2603521

13 July 2021 Correcting lossy channels with heralded amplification

Sergei Slussarenko

Proceedings Volume 11844, Photonics for Quantum 2021; 118440B (2021) https://doi.org/10.1117/12.2603521
Event: Photonics for Quantum, 2021, Online Only

Abstract

Loss-induced errors are inevitable in long-distance information transfer and lead to quantum state degradation in quantum communication. It is possible to reduce the effect of loss on a quantum state using probabilistic quantum amplification which, however, destroys the input state in cases when it fails. Instead, what we present here is a realization of an error-corrected quantum channel, where we prepare a purified copy of entanglement. Upon success over this operation, it can be used to teleport the state over the so-improved channel. We test our channel by using it to transmit entanglement through a large amount of loss and demonstrate improved performance over direct transmission, without relying on post-selection.

Conference Presentation

Citation Download Citation

Sergei Slussarenko "Correcting lossy channels with heralded amplification", Proc. SPIE 11844, Photonics for Quantum 2021, 118440B (13 July 2021); https://doi.org/10.1117/12.2603521

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