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M. Zens, H. Dhar, D. Krimer, S. Rotter:
"Nonclassical light in the quantum dynamics of mesoscopic spin ensembles";
Talk: International Conference "Nigmatullin's Readings - 2018", Kasan; 2018-10-09 - 2018-10-12.

Mesoscopic spin ensembles coupled to a cavity offer the exciting prospect of observing complex nonclassical phenomena with features intermediate between that of single spins and of macroscopic spin ensembles. To unravel the full quantum dynamics and photon statistics of the mesoscopic spin-cavity systems, we present a time-adaptive variational renormalization group method that accurately captures the underlying Lindbladian dynamics. We demonstrate how the collective interactions in an ensemble of as many as 100 spins, arranged in a spectral frequency comb, can be harnessed to obtain a periodic pulse train of sub-Poissonian, nonclassical light.