Phys. Rev. Lett. 81, 3611–3614 (1998)Photon Switching by Quantum InterferenceReceived 13 July 1998; published in the issue dated 26 October 1998 We describe a four-state atomic system that absorbs two photons, but does not absorb one photon. As a switch, in the ideal limit, it operates at an energy cost of one photon per switching event. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.3611
DOI:
10.1103/PhysRevLett.81.3611
PACS:
32.80.-t, 42.50.Dv, 42.50.Gy, 42.50.Hz
|
|
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.