| Issue |
Europhysics News
Volume 46, Number 3, May-June 2015
|
|
|---|---|---|
| Page(s) | 18 - 21 | |
| DOI | https://doi.org/10.1051/epn/2015303 | |
| Published online | 10 June 2015 | |
Little big photon
Department of Physics and Research – Laboratory of Electronics – Massachusetts Institute of Technology – Cambridge, MA, USA
A photon, the constituent particle of light, carries only a tiny amount of energy. Furthermore photons do not interact with one another in vacuum, and generally only very weakly in optical media. Nonetheless, it has recently become possible for a single photon to switch on or off hundreds of other photons, or to generate entanglement between thousands of atoms.
© European Physical Society, EDP Sciences, 2015
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