278 research outputs found
Atomic States Entanglement in Carbon Nanotubes
The entanglement of two atoms (ions) doped into a carbon nanotube has been
investigated theoretically. Based on the photon Green function formalism for
quantizing electromagnetic field in the presence of carbon nanotubes,
small-diameter metallic nanotubes are shown to result in a high degree of the
two-qubit atomic entanglement for long times due to the strong atom-field
coupling.Comment: 4 pages, 2 figure
Quantum Mechanics of Semiconductor Quantum Dots and Rings
We consider the several phenomena which are taking place in Quantum Dots (QD)
and Quantum Rings (QR): The connection of the Quantum Chaos (QC) with the
reflection symmetry of the QD, Disappearance of the QC in the tunnel coupled
chaotic QD, electron localization and transition between Double Concentric QR
in the transverse magnetic field, transition of electron from QR to the QD
located in the center of QR. Basis of this consideration is the effective
Schr\"odinger equation for the corresponding systems.Comment: 32 pages, 26 figures; This paper is the basis of two talks of Sergei
Matinyan presented at the workshop "Low Dimension Systems & Gauge principle"
(Yerevan, Tbilisi, 2011
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