Abstract
The implementation of quantum memory, i.e. a quantum interface between light and matter, is central to advanced applications of quantum information processing and communication [1]. Notably, quantum memories are key ingredients in quantum repeaters [2], which promise extending quantum communication beyond its current distance limit. After a brief review of the working principle of a quantum repeater and the state-of-the-art of experimental investigations into quantum memory, we will present the reversible transfer of photon-photon entanglement into entanglement between a photon and an excitation in a thulium-doped lithium-niobate waveguide cooled to 3K. Our finding constitutes an important step towards quantum repeaters and fully quantum-enabled networks.
© 2011 AOS
PDF ArticleMore Like This
Erhan Saglamyurek, Neil Sinclair, Jeongwan Jin, Joshua A. Slater, Daniel Oblak, Félix Bussières, Mathew George, Raimund Ricken, Wolfgang Sohler, and Wolfgang Tittel
QTuG2 International Conference on Quantum Information (QIM) 2011
Wolfgang Tittel
JTh1K.1 CLEO: Applications and Technology (CLEO:A&T) 2012
H.de Riedmatten, I. Usmani, B. Lauritzen, C. Clausen, J. Minář, N. Sangouard, C. Simon, A. Amari, A. Walther, S. Kröll, M. Afzelius, and N. Gisin
QWH2 Quantum Electronics and Laser Science Conference (CLEO:FS) 2010