The glassy random laser: replica symmetry breaking in the intensity fluctuations of emission spectra

摘要: The behavior of a newly introduced overlap parameter is analyzed, measuring the correlation between intensity fluctuations waves in random media different physical regimes, with varying amount disorder and non-linearity. Its relationship established to standard Parisi order replica theory for spin-glasses. In complex spherical spin-glass model, describing onset lasers, symmetry breaking fluctuation shown occur at high pumping or low temperature. This identifies laser transition describes its glassy nature terms emission spectra data, only data so far accessible measurements. theoretical analysis is, eventually, compared recent measurements demonstrating validity providing straightforward interpretation spectral behaviors lasers.