Phase Shift of a Weak Coherent Beam Induced by a Single Atom
- 7 October 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 103 (15), 153601
- https://doi.org/10.1103/physrevlett.103.153601
Abstract
We report on a direct measurement of a phase shift on a weak coherent beam by a single atom in a Mach-Zehnder interferometer. By strongly focusing the probe mode to the location of the atom, a maximum phase shift of about 1° is observed experimentally.
Keywords
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