Reference : Non-classical states of light with smooth 𝑃-function
Scientific congresses and symposiums : Unpublished conference/Abstract
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/222958
Non-classical states of light with smooth 𝑃-function
English
Damanet, François [Université de Liège - ULiège > Département de physique > Optique quantique >]
Kübler, Jonas [Institut für theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany > > > >]
Martin, John mailto [Université de Liège - ULiège > Département de physique > Optique quantique >]
Braun, Daniel [Institut für theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany > > > >]
Mar-2018
No
International
82te DPG-Frühjahrstagung
du 5 au 9 mars 2018
Deutsche Physikalische Gesellschaft e.V.
Erlangen
Germany
[en] In quantum optics, the most fundamental criterion to judge the non- classicality of a quantum state of light is in terms of the Glauber- Sudarshan 𝑃 -function. If the 𝑃 -function of a state is not a valid prob- ability density, e.g. not a positive semi-definite function, the state is considered non-classical. However, most known non-classical states have a corresponding 𝑃 -function which is highly irregular. This renders working with them difficult and direct experimental reconstruction im- possible.
Here we introduce a new class of non-classical states with regular smooth 𝑃 -functions by "puncturing" a classical 𝑃 -function with nar- row negative peaks. We analytically proof their existence and deter- mine parameter ranges where the constructed states are physical, as well as the regimes yielding anti-bunching of light. To conclude, we present some possible experimental realizations of punctured states.
CECI
http://hdl.handle.net/2268/222958

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