Entanglement between particle and wave-like states of light resembles Schrodinger's cat experiment

While entangling cats with atoms is not exactly an active area of research in any physics lab today (as far as anyone knows), many physicists are working on a close analogy of Schrödinger's cat experiment. That is, they are developing methods to entangle classical objects (analogous to the cat) with quantum particles (like an individual atom).

In a new paper published as the July 2014 cover article in Nature Photonics, physicists Hyunseok Jeong, et al., at institutions in South Korea, Italy, and Australia, have devised and experimentally demonstrated a novel scheme to generate entanglement between quantum and classical (or "particle-like" and "wave-like") states of light. This study marks the first time that physicists have generated entanglement between a single photon and a coherent wave-like state of light.