ENTANGLEMENT IN TWO VERTICALLY COUPLED IDENTICAL SINGLE-ELECTRON QUANTUM DOTS

The evolutions of the von Neumann entropies of the low-lying states in two vertically coupled identical single-electron quantum dot systems with increasing magnetic field and inter-dot separation have been investigated. We show that both the external magnetic field and the inter-dot separation can induce the transition of the entropy of the system. Additionally, a suspicion (that is, the higher the excitation, the larger entropy) has been clarified and proven to be incorrect.

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On the Energy Spectrum of Two-Electron Quantum Dot in External Magnetic Field

Nanotechnology in the Security Systems - NATO Science for Peace and Security Series C: Environmental Security ◽

10.1007/978-94-017-9005-5_6 ◽

2014 ◽

pp. 55-67

Author(s):

N. N. Bogolubov ◽

A. V. Soldatov ◽

S. P. Kruchinin

Keyword(s):

Magnetic Field ◽

Energy Spectrum ◽

External Magnetic Field ◽

Quantum Dot ◽

Electron Quantum

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Single electron quantum dot in a spatially periodic magnetic field

Physical Review B ◽

10.1103/physrevb.73.235346 ◽

2006 ◽

Vol 73 (23) ◽

Cited By ~ 11

Author(s):

D. Buchholz ◽

P. S. Drouvelis ◽

P. Schmelcher

Keyword(s):

Magnetic Field ◽

Quantum Dot ◽

Single Electron ◽

Periodic Magnetic Field ◽

Spatially Periodic ◽

Electron Quantum

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Energy Spectra of the Low-Lying State in N-Layer Quantum Dots

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.483.170 ◽

2013 ◽

Vol 483 ◽

pp. 170-173

Author(s):

An Mei Wang

Keyword(s):

Magnetic Field ◽

Quantum Dots ◽

Angular Momentum ◽

External Magnetic Field ◽

Quantum Dot ◽

Applied Magnetic Field ◽

Ground State ◽

Weak Coupling ◽

State Energy ◽

Energy Spectra

A method is proposed to exactly diagonalize the Hamiltonian of a N-layer quantum dot containing a single electron in each dot in arbitrary magnetic fields. the energy spectra of the dot are calculated as a function of the applied magnetic field. We find disco-ntinuous ground-state energy transitions induced by an external magnetic field in the case of strong coupling. However, in the case of weak coupling, such a transition does not occur and the angular momentum remains zero.

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ANALYTICAL STUDY OF EXTERNAL MAGNETIC FIELD EFFECT ON THE ENERGY LEVELS OF A TWO-ELECTRON QUANTUM DOT

Modern Physics Letters B ◽

10.1142/s0217984910023165 ◽

2010 ◽

Vol 24 (11) ◽

pp. 1127-1133 ◽

Cited By ~ 4

Author(s):

H. HASSANABADI ◽

M. HAMZAVI ◽

A. A. RAJABI

Keyword(s):

Magnetic Field ◽

External Magnetic Field ◽

Quantum Dot ◽

Analytical Method ◽

Field Effect ◽

Analytical Study ◽

Energy Levels ◽

Magnetic Field Effect ◽

Spin Interaction ◽

Electron Quantum

We introduce an analytical method to solve the corresponding Schrödinger equation of a two-electron quantum dot in the presence of harmonic plus linear terms as well as a term related to spin interaction. Next, we calculate the energy eigenstates in the presence of an external magnetic field. The obtained results are comparable to those of [Formula: see text] expansion and WKB methods.

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Rabi type oscillations in damped two-dimensional single electron quantum dots

Open Physics ◽

10.2478/s11534-012-0064-5 ◽

2012 ◽

Vol 10 (4) ◽

Author(s):

Madhuri Mukhopadhyay ◽

Ram Hazra ◽

Manas Ghosh ◽

Samaresh Mukherjee ◽

Shankar Bhattacharyya

Keyword(s):

Magnetic Field ◽

Quantum Dots ◽

Josephson Junction ◽

Transverse Magnetic Field ◽

Transverse Magnetic ◽

Single Electron ◽

Coordinate Space ◽

Two Dimensional ◽

Rabi Oscillations ◽

Electron Quantum

AbstractWe present a quantized model of a harmonically confined dot atom with inherent damping in the presence of a transverse magnetic field. The model leads to a non-Hermitian Hamiltonian in coordinate space. We have analytically studied the effects of damping on Rabi type oscillations of the system. The model explains the decoherence of Rabi oscillations in a Josephson Junction.

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