The recent development of quantum biology results in various breakthroughs in exploring the role of quantum physics in biological systems, as well as in observing and controlling light-matter interactions in biological materials on a fundamental quantum level. We seek to combine the concept of quantum biology with quantum optics to...
Recent studies in quantum biology suggest that quantum mechanics help us to explore quantum processes in biological system. Here, we demonstrate generation of photon pairs through spontaneous four-wave mixing process in naturally occurring fluorescent proteins. We develop a general empirical method for analyzing the relative strength of nonlinear optical interaction...