Demonstrating various quantum effects with two entangled laser beams B. Hage, J. Janoušek, S. Armstrong, T. Symul, J. Bernu, H.M. Chrzanowski, P.K. Lam and H.A. Bachor Eur. Phys. J. D, 63 3 (2011) 457-461 Published online: 23 June 2011 DOI: 10.1140/epjd/e2011-20153-9