Diagnostics of many-particle electronic states: non-stationary currents and residual charge dynamics
N. S. Maslova+, V. N. Mantsevich+, P. I. Arseyev*×
+Moscow State University, Department of Physics, 119991 Moscow, Russia
*P.N. Lebedev Physical Institute of RAS, 119991 Moscow, Russia
×Russia National Research University Higher School of Economics, 101000 Moscow, Russia
Abstract
We propose the method for identifying many particle
electronic states in the system of coupled quantum dots (impurities)
with Coulomb correlations. We demonstrate that different electronic
states can be distinguished by the complex analysis of localized
charge dynamics and non-stationary characteristics. We show that
localized charge time evolution strongly depends on the properties
of initial state and analyze different time scales in charge
kinetics for initially prepared singlet and triplet states. We
reveal the conditions for existence of charge trapping effects
governed by the selection rules for electron transitions between the
states with different occupation numbers.