LONG DISTANCE QUANTUM COMMUNICATION

Samuele Altilia

L. Marchildon

The interpretation of quantum mechanics (or, for that matter, of any physical theory) consists in answering the question: How can the world be for the theory to be true? That question is especially pressing in the case of the long-distance correlations predicted by Einstein, Podolsky and Rosen, and rather convincingly established during the past decades in various laboratories. I will review four different approaches to the understanding of long-distance quantum correlations: (i) the Copenhagen interpretation and some of its modern variants; (ii) Bohmian mechanics of spin-carrying particles; (iii) Cramer's transactional interpretation; and (iv) the Hess-Philipp analysis of extended parameter spaces.

Hans J. Briegel

Xie Suping

The paper contains researchs on the property of laser travelling in a long distance and photonionization of laser-atom interaction. We sirst derive the equation of three step photonionization describing the field and the density matrix for the atomic population. The ionization probability evolution with the laser parameter are calculated in different cases. With deep research, we find that the laser transfer in a long distance causes evolution of laser parameter. Laser power, laser pulse shape, pulse width and time stepout of three bunch laser are main factors in affecting photonionization

A. Beveratos, M. Halder, J. Van Houweligen +3 more

Nicoló Lo Piparo