Phys. Rev. Lett. 101, 200502 (2008) [4 pages]Directional Coupling for Quantum Computing and CommunicationReceived 27 March 2008; published 13 November 2008 We introduce the concept of directional coupling, i.e., the selective transfer of a state between adjacent quantum wires, in the context of quantum computing and communication. Our analysis rests upon a mathematical analogy between a dual-channel directional coupler and a composite spin system. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.200502
DOI:
10.1103/PhysRevLett.101.200502
PACS:
03.67.Hk, 03.67.Lx, 42.82.Et
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.