Amanhã (20), o auditório do Departamento de Física receberá a primeira palestra do ciclo de Seminários de Ótica do segundo semestre de 2019. O evento, que começará às 14h, terá como palestrante Santiago Rojas-Rojas, da Universidad de Concepcion no Chile. A palestra, cujo título é “Squeezing distribution in waveguide arrays”, é gratuita e aberta para todos os públicos.

Resumo

We present a method to generate pure two-mode or three-mode squeezed states via the injection of single mode squeezed states in a waveguide array. In general, a gausson state exhibiting both single-mode and multi-mode squeezing is generated. However, for some particular parameters, the state collapses either into a product of uncoupled single-mode squeezed states or a pure multi-mode squeezed state. By making use of the polarization degree-of-freedom, we propose a technique which allows for a transition between those regimes on-the-fly. Besides, we study the entanglement of gausson states and show that for typical losses, squeezing and entanglement is preserved. Our results show that waveguide arrays are suitable and scalable scenarios to manipulate quantum light properties.

Mais informações
Departamento de Física da UFPE
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