Pseudo-spin Kondo effect in Aharonov-Bohm interferometer containing laterally coupled double quantum dots

摘要

We investigate pseudo-spin Kondo effect in an Aharonov-Bohm (AB) interferometer having laterally coupled two quantum dots in the two interferometer arms with strong inter-dot Coulomb interaction in terms of the slave-boson mean-field theory. We introduce an indirect coupling parameter a, which provides the exotic pseudo-spin Kondo effect showing AB oscillations and asymmetric Kondo resonant peaks with respect to the Fermi energy.