[Todos] Seminario Especial: Philippe Courteille - Quantum sensing with cold atoms and matter waves

[Christian Schmiegelow]

Invitamos a un seminario especial.
El lunes que viene, el 22 de abril, a las 10 hs.
Nos vemos en la Pecera Grande.

Philippe Courteille, Universidade de São Paulo, Instituto de Física de São
Carlos Departamento de Física e Ciência dos Materiais

Title: Quantum sensing with cold atoms and matter waves

Abstract: Cold atoms represent an ideal platform for the implementation of
second-generation quantum technologies. Particularly interesting
opportunities emerge from a coherent coupling of the atoms to single-mode
light fields enabled by resonant optical cavities. I will present two of
our research lines. In the first one, we study the interaction of ultracold
atoms with a ring cavity in parameter regimes suitable for the creation of
non-classical collective states of the atomic cloud with possible
application in Heisenberg-limited interferometry. The regime may also allow
for a global synchronization of the atomic dipoles with application in
superradiant lasing. In a second research line, we are setting up a high
sensitivity matter-wave interferometer for inertial sensing and gravimetry.
It is based on observing in real time Bloch oscillations performed by atoms
located inside a periodic optical lattice formed by two counter-propagating
modes of the a cavity and exploits the fact that the periodicity of the
oscillations is strictly proportional to external forces.

-- 
Christian Schmiegelow
LIAF -  Laboratorio de Iones y Átomos Fríos
Departamento de Física & Instituto de Física de Buenos Aires, UBA-CONICET
Intendente Guiraldes 2160, Pabellon 1
(1428) Ciudad de Buenos Aires, Argentina
TE:  +54-11-5285-7502
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