[Todos] HOY Encuentro de Cuantronica

[liliana arrachea]

      ENCUENTRO DE CUANTRONICA

                               HOY

        Lunes 26 de Octubre, 15:00 hs
        Aula Seminario, Depto de Física
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Las charlas estarán a cargo de:

*Cecilia Cormick, ``Studying entanglement dynamics in an ion trap´´
*Guillermo Quinteiro, "Interacción de 'twisted light' con semiconductores"

(ver resúmenes abajo)

Estan todos cordialmente invitados.

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Studying entanglement dynamics in an ion trap, (Cecilia Cormick)

The evolution of the entanglement between two oscillators coupled with a
common
environment is non-trivial and has been extensively studied (Phys.
Rev. Lett. 100, 220401). The long time limit exhibits qualitatively
different behaviors (phases) depending on parameters such as the
initial state and the temperature of the bath. The possible phases
include cases where entanglement suffers from sudden death, others
with infinite sequence of events of sudden death and revivals, or
non-vanishing long-term entanglement. In this talk I will describe a
simple way of realizing and observing these different scenarios in an
ion trap experiment. The proposal involves three ions in a linear
trap. The degrees of freedom associated to the transverse motion of
two of them correspond to the two
oscillators while the central ion, subject to continuous laser
cooling, is the gateway to a decohering reservoir. The scheme proposed
is an instance of a quantum simulator that seems to be realizable with
current technology. The simulation is an example of an interesting
class which involves the observation and control of the evolution of
quantum open systems in the non-Markovian regime.
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