Entangling spatial modes within a single beam
Jiří Janoušek, K. Wagner, Jean‐François Morizur, Nicolas Treps, Ping Koy Lam, C. C. Harb, Hans‐A. Bachor · 2009
In this paper, simple demonstration was presented to produce and measure entanglement, all within a single beam. Accessing and manipulating the expanded basis of transverse spatial modes makes this technology an interesting contender for optical quantum protocols.