Observation of non-Markovian micromechanical Brownian motion.

摘要: All physical systems are to some extent open and interacting with their environment. This insight, basic as it may seem, gives rise the necessity of protecting quantum from decoherence in technologies is at heart emergence classical properties physics. The precise mechanisms, however, often unknown for a given system. In this work, we make use an opto-mechanical resonator obtain key information about spectral densities its condensed-matter heat bath. sharp contrast what commonly assumed high-temperature Brownian motion describing dynamics mechanical degree freedom, based on statistical analysis emitted light, shown that density highly non-Ohmic, reflected by non-Markovian dynamics, which quantify. We conclude elaborating further applications system identification.