Transition from chaotic to regular behavior of electrons in a stadium-shaped quantum dot in a perpendicular magnetic field

1995 ◽  
Vol 52 (3) ◽  
pp. 1745-1750 ◽  
Author(s):  
Zhen-Li Ji ◽  
Karl-Fredrik Berggren
Keyword(s):  
Magnetic Field ◽  
Quantum Dot ◽  
Perpendicular Magnetic Field ◽  
Regular Behavior

scholarly journals Magnetic Otto Engine for an Electron in a Quantum Dot: Classical and Quantum Approach

2019 ◽  
Author(s):  
Francisco J. Peña ◽  
Oscar Negrete ◽  
Gabriel Alvarado Barrios ◽  
David Zambrano ◽  
Alejandro González ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dot ◽  
Perpendicular Magnetic Field ◽  
Classical Approach ◽  
Total Work ◽  
Otto Cycle ◽  
Classical Counterpart ◽  
Quantum Approach ◽  
Quantum Version ◽  
Quantum Formulation

We study the performance of a classical and quantum magnetic Otto cycle with a quantum dot as a working substance using the Fock-Darwin model with the inclusion of the Zeeman interaction. Modulating an external/perpendicular magnetic field, we found in the classical approach an oscillating behavior in the total work that is not perceptible under the quantum formulation. Also, we compare the work and efficiency of this system for different regions of the Entropy, $S(T,B)$, diagram where we found that the quantum version of this engine always shows a reduced performance in comparison to his classical counterpart.

Effects of Confinement on Shallow Impurities in GaAs-Ga 1−xA1xAs Quantum Dots

1992 ◽  
Vol 281 ◽  
Author(s):  
Francisco A. P. Osörio ◽  
Oscar HipöLito ◽  
Francois M. Peeters
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Quantum Dot ◽  
Ground State Energy ◽  
Ground State ◽  
State Energy ◽  
Perpendicular Magnetic Field ◽  
Confinement Potential ◽  
Shallow Impurity ◽  
Shallow Impurities

ABSTRACTThe ground state energy of a shallow impurity placed in the center of a circular quantum dot is studied. The effects of the strength of the confinement potential and a perpendicular magnetic field are investigated theoretically.

scholarly journals Transport through a strongly coupled graphene quantum dot in perpendicular magnetic field

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Johannes Güttinger ◽  
Christoph Stampfer ◽  
Tobias Frey ◽  
Thomas Ihn ◽  
Klaus Ensslin
Keyword(s):  
Magnetic Field ◽  
Quantum Dot ◽  
Perpendicular Magnetic Field ◽  
Strongly Coupled ◽  
Graphene Quantum Dot
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