Speaker
Description
Optical systems give a flexible way to explore quantum mechanics. The quantum states of light are fundamental in quantum communications and, in quantum computation, they provide an alternative way to obtain quantum advantage without a full universal quantum computer. This talk will introduce the main applications of linear optical devices to quantum information explaining their capabilities and limitations.
From a description in terms of Lie groups, we can study what can and cannot be done with linear systems and give implementation and optimization methods and invariants to determine the feasibility of certain transformations. With these techniques, we will review the use of linear systems for state preparation and in different primitives in quantum information like state comparison and symmetry tests.