Physical realization of the Glauber quantum oscillator.

摘要: More than thirty years ago Glauber suggested that the link between reversible microscopic and irreversible macroscopic world can be formulated in physical terms through an inverted harmonic oscillator describing quantum amplifiers. Further theoretical studies have shown paradigm for irreversibility is indeed reversed oscillator. As outlined by Glauber, providing experimental evidence of these idealized systems could open way to a variety fundamental studies, example simulate dynamics explain arrow time. However, supporting quantized oscillators lacking. We report direct observation exploding n = 0 n = 2 discrete states Γ0 Γ2 decay rates generated optical photothermal nonlinearity. Our results give validation main prediction mechanics, is, existence with rates. also provide novel perspective shock-waves, potentially useful applications as lasers, amplifiers, white-light X-ray generation.