Access
To read this story in full you will need to login or make a payment (see right).
News and Views
Nature 452, 37-38 (6 March 2008) | doi:10.1038/452037a; Published online 5 March 2008
nature jobs
Bilingual Standard Operating Prodecure Coordinator
- KSR
- Cincinnati, OH, USA
Flavor Chemist
- KSR
- Ontario, CA, USA
Quantum physics: Tangled memories
Lene Vestergaard Hau1
Abstract
The latest quantum trick — mapping two entangled photon states onto two separate regions of an atomic cloud, and then retrieving them — could be a fillip for applications, among them quantum cryptography.
On page 67 of this issue, Choi et al.1 recount how they store two 'entangled' photon states in a memory consisting of a cloud of cold atoms, and then, after a certain delay, retrieve those self-same states from the cloud. The optical modes are stored in spatially separated regions of a single atom cloud, but there is no reason why the technique should not be used to imprint the same quantum states on two distinct atom clouds separated by a macroscopic distance.
To read this story in full you will need to login or make a payment (see right).
MORE ARTICLES LIKE THIS
These links to content published by NPG are automatically generated.
NEWS AND VIEWS
Quantum information Remember that photonNature News and Views (08 Dec 2005)
Atomic physics Quantum leap from light to atomsNature News and Views (05 Oct 2006)
See all 14 matches for News And ViewsRESEARCH
Long-distance quantum communication with atomic ensembles and linear opticsNature Article (22 Nov 2001)
A scheme for efficient quantum computation with linear opticsNature Article (04 Jan 2001)
See all 23 matches for Research