A new component of the cosmic medium, a light scalar field or ”quintessence ”, has been proposed recently to explain cosmic acceleration with a dynamical cosmological constant. Such a field is expected to be coupled explicitely to ordinary matter, unless some unknown symmetry prevents it. I investigate the cosmological consequences of such a coupled quintessence (CQ) model, assuming an exponent...

In this work, we study theoretically and experimentally optical modes of photonic molecules—clusters optically coupled spherical resonators. Unlike previous studies, do not use stems to hold spheres in their positions relying, instead, on tweezers maintain desired structures. The the resonators are excited using a tapered fiber observed as resonances with quality factor high 10 7 . Using fluore...