Properties of hybrid entanglement between discrete- and continuous-variable states of light
Luca Costanzo, Alessandro Zavatta, Samuele Grandi, Marco Bellini, Hyunseok Jeong, Minsu Kang, S-W Lee, Timothy C. Ralph · Physica Scripta · 2015
We discuss some of the main features of a recently-generated form of hybrid entanglement between discrete- and continuous-variable states of light. Ideally, such a kind of entanglement should involve single-photon and coherent states as key representatives of the respective categories of states. Here we investigate the characteristics and limits of a scheme that, relying on a superposition of photon-creation operators onto two distinct modes, realizes the above ideal form of hybrid entanglement in an approximate way.