Quantum optics. Quantum dynamics of an electromagnetic mode that cannot contain N photons.
Science
; 348(6236): 776-9, 2015 May 15.
Article
em En
| MEDLINE
| ID: mdl-25977546
ABSTRACT
Electromagnetic modes are instrumental in building quantum machines. In this experiment, we introduce a method to manipulate these modes by effectively controlling their phase space. Preventing access to a single energy level, corresponding to a number of photons N, confined the dynamics of the field to levels 0 to N - 1. Under a resonant drive, the level occupation was found to oscillate in time, similarly to an N-level system. Performing a direct Wigner tomography of the field revealed its nonclassical features, including a Schrödinger cat-like state at half period in the evolution. This fine control of the field in its phase space may enable applications in quantum information and metrology.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Science
Ano de publicação:
2015
Tipo de documento:
Article