Continuous variable (CV) systems play an important role in quantum foundations and quantum information processing, especially because of their quantum optical realization. Gaussian states of CV systems, on the one hand have non-trivial quantum properties, and on the other hand, can be realized in the laboratory. There are non-Gaussian states which can be obtained from Gaussian states via physically realizable operations and these too can be useful in enhancing non-classicality and improving the performance of quantum information processing protocols. In the talk, I will introduce CV systems and their Gaussian and non-Gaussian states. The violation of Bell-type inequalities using CV systems will be discussed. Quantum key distribution protocols and quantum teleportation schemes using Gaussian and non-Gaussian states will also be taken up.
Elie Wolfe