Abstract

Quantum Information Processing protocols are not restricted to qubits or single mode continuous variable systems. They can also deal with more complex physical objects such as optical images, which contain a great deal of information. For instance, it was shown theoretically that it is possible to create spatial EPR entanglement between two images, or to improve image processing techniques by superposing to the image a vacuum-squeezed light having a complicated and well defined shape related to the image processing protocol (^:). It is therefore of great importance for future applications to be able to generate "quantum images", i.e. non-classical light with an adjustable transverse variation, and if possible in the c.w. regime, for which are available low noise and stable sources of light which are well suited to high sensitivity measurements.

© 2007 IEEE