scholarly journals Spin decay in a quantum dot coupled to a quantum point contact

2006 ◽  
Vol 73 (15) ◽  
Author(s):  
Massoud Borhani ◽  
Vitaly N. Golovach ◽  
Daniel Loss
Keyword(s):  
Quantum Dot ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Quantum Point

Geometric phase of an open double-quantum-dot system detected by a quantum point contact

2020 ◽  
Vol 29 (3) ◽  
pp. 030302
Author(s):  
Qian Du ◽  
Kang Lan ◽  
Yan-Hui Zhang ◽  
Lu-Jing Jiang
Keyword(s):  
Quantum Dot ◽  
Geometric Phase ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Double Quantum ◽  
Double Quantum Dot ◽  
Quantum Point

PHOTON-ASSISTED TRANSPORT CHARACTERISTICS THROUGH QUANTUM DOT COUPLED TO SUPERCONDUCTING RESERVOIRS

NANO ◽  
2006 ◽  
Vol 01 (03) ◽  
pp. 259-264 ◽  
Author(s):  
A. S. ATALLAH ◽  
A. H. PHILLIPS ◽  
A. F. AMIN ◽  
M. A. SEMARY
Keyword(s):  
Magnetic Field ◽  
Numerical Calculation ◽  
Quantum Dot ◽  
Resonant Tunneling ◽  
Andreev Reflection ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Time Varying ◽  
Quantum Point ◽  
Tunneling Behavior

The influence of time-varying fields on the transport through a mesoscopic device has been investigated. This mesoscopic device is modeled as a quantum dot coupled to superconducting reservoirs via quantum point contact. The effect of a magnetic field and the Andreev reflection process were taken into account. The conductance was deduced by using Landuaer–Buttiker equation. A numerical calculation has been performed that shows a resonant tunneling behavior. Such investigation is important for fabricating photoelectron mesoscopic devices.

scholarly journals Relation between the 0.7 anomaly and the Kondo effect: Geometric crossover between a quantum point contact and a Kondo quantum dot

2015 ◽  
Vol 92 (19) ◽  
Author(s):  
Jan Heyder ◽  
Florian Bauer ◽  
Enrico Schubert ◽  
David Borowsky ◽  
Dieter Schuh ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Kondo Effect ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Quantum Point ◽  
0.7 Anomaly ◽  
Geometric Crossover

scholarly journals Detecting terahertz current fluctuations in a quantum point contact using a nanowire quantum dot

2008 ◽  
Vol 78 (3) ◽  
Author(s):  
S. Gustavsson ◽  
I. Shorubalko ◽  
R. Leturcq ◽  
T. Ihn ◽  
K. Ensslin ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Current Fluctuations ◽  
Quantum Point
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