Disappearance of Quantum Chaos in Coupled Chaotic Quantum Dots
arXiv:1006.3803 · doi:10.1016/j.physleta.2010.11.068
Abstract
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.
4 pages, 9 figures
References in corpus (5)
- Chaotic Dirac billiard in graphene quantum dots
- Symmetry causes a huge conductance peak in double quantum dots
- Semiclassical transport in nearly symmetric quantum dots I: symmetry-breaking in the dot
- Electronic and Level Statistics Properties of Si/SiO2 Quantum Dots
- Semiclassical transport in nearly symmetric quantum dots II: symmetry-breaking due to asymmetric leads