Using quantum correlations and entanglement in continuous laser beams
Abstract
Quantum correlations and entanglement are an important addition to the conventional properties of continuous laser beams. They allow us to avoid, at least in principle, the limitations imposed by quantum noise and they open new opportunities for the transfer and processing of quantum information. This manuscript reviews the state of art in the creation, detection of quantum correlations and entanglement, shows the analogy to the techniques based on single photons. It summarizes some of the recent advances in optical sensing and quantum information processing.