Tunneling through Quantum Dots with Discrete Symmetries

Yshai Avishai; Konstantin Kikoin

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arXiv · 0801.3095

Tunneling through Quantum Dots with Discrete Symmetries

Yshai Avishai·Konstantin Kikoin

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Abstract

We describe in this short review the influence of discrete symmetries in complex quantum dots on the Kondo co-tunneling through these nano-objects. These discrete symmetries stem from the geometrical structure of the tunneling devices (e.g spatial symmetry of multivalley quantum dot in a tunneling contact with leads). They affect the dynamical symmetry of spin multiplets characterizing the ground state and excitations in quantum dots with definite electron number occupation. The influence of external electric and magnetic fields on these symmetries is examined, and analogies with the physics of quantum tunneling through molecular complexes are discussed.

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Yshai Avishai, Konstantin Kikoin. 2008-01-20. Tunneling through Quantum Dots with Discrete Symmetries. https://arxiv.org/abs/0801.3095

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