1302.6386 (Yu Liu et al.)

Nonequilibrium shot noise spectrum through a quantum dot in the Kondo
regime: A master equation approach under self-consistent Born approximation    [PDF]

Yu Liu, Jinshuang Jin, Jun Li, Xin-Qi Li, YiJing Yan

We construct a number($n$)-resolved master equation (ME) approach under self-consistent Born approximation (SCBA) for noise spectrum calculation. The formulation is essentially non-Markovian and incorporates properly the interlay of the multi-tunneling processes and many-body correlations. We apply this approach to the challenging nonequilibrium Kondo system and predict a profound nonequilibrium Kondo signature in the shot noise spectrum. The proposed $n$-SCBA-ME scheme goes completely beyond the scope of the Born-Markovian master equation approach, in the sense of being applicable to the shot noise of transport under small bias voltage, in non-Markovian regime, and with strong Coulomb correlations as favorably demonstrated in the nonequilibrium Kondo system.

View original: http://arxiv.org/abs/1302.6386