Free Space Quantum Communication using Continuous Polarization Variables
Bettina Heim, Christian Peuntinger, Christoffer Wittmann, Christoph W. Marquardt, Gerd Leuchs · Imaging and Applied Optics · 2011
We experimentally investigate atmospheric influences on quantum communication using continuous polarization variables. Signal and local oscillator are combined in one spatial mode, which leads to excellent interference at the homodyne detection. Phase fluctuations are thus auto-compensated.