Disappearance of Quantum Chaos in Coupled Chaotic Quantum Dots

Details Disappearance of Quantum Chaos in Coupled Chaotic Quantum Dots Disappearance of Quantum Chaos in Coupled Chaotic Quantum Dots

2010-06-18

arxiv.org/abs/1006.3803v1

Phys. Lett. A 375 (2011) 620

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 9 figures

Scientific paper

Statistical properties of the single electron levels confined in the semiconductor (InAs/GaAs, Si/SiO2) double quantum dots (DQDs) are considered. We demonstrate that in the electronically coupled chaotic quantum dots the chaos with its level repulsion disappears and the nearest neighbor level statistics becomes Poissonian. This result is discussed in the light of the recently predicted "huge conductance peak" by R.S. Whitney at al. (Phys. Rev. Lett. {\bf 102}, 186802 (2009)) in the mirror symmetric DQDs.

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