scholarly journals Positive current noise cross correlations in capacitively coupled double quantum dots with ferromagnetic leads

2009 ◽  
Vol 80 (15) ◽  
Author(s):  
Bing Dong ◽  
X. L. Lei ◽  
N. J. M. Horing
Keyword(s):  
Quantum Dots ◽  
Current Noise ◽  
Double Quantum ◽  
Capacitively Coupled ◽  
Positive Current ◽  
Double Quantum Dots ◽  
Cross Correlations

Current noise cross correlations and dynamical spin entanglement in coupled quantum dots

2011 ◽  
Vol 11 (7&8) ◽  
pp. 606-614
Author(s):  
Hai-Ffeng Lu ◽  
Yong Guo ◽  
Lian-Fu Wei
Keyword(s):  
Quantum Dots ◽  
Exchange Interactions ◽  
Thermal Fluctuations ◽  
Current Noise ◽  
Double Quantum ◽  
Zero Temperature ◽  
Nonzero Temperature ◽  
Double Quantum Dots ◽  
Dynamical Spin ◽  
Cross Correlations

The authors investigate current noise cross correlations (CCs) through coupled double quantum dots under transport conditions. It is demonstrated that positive CCs relate to either thermal fluctuations at nonzero temperature or quantum tunneling processes at zero temperature. These measurable CCs could service as the sensitive indicators of entanglements between electronic spins in double dots coupled by exchange interactions.

scholarly journals Renormalization group study of capacitively coupled double quantum dots

2006 ◽  
Vol 18 (29) ◽  
pp. 6545-6570 ◽  
Author(s):  
Martin R Galpin ◽  
David E Logan ◽  
H R Krishnamurthy
Keyword(s):  
Quantum Dots ◽  
Renormalization Group ◽  
Double Quantum ◽  
Capacitively Coupled ◽  
Double Quantum Dots

Single-electron logic based on capacitively coupled double quantum dots

2006 ◽  
Vol 35 (1) ◽  
pp. 188-193
Author(s):  
L.W. Yu ◽  
K.J. Chen ◽  
J. Xu ◽  
X.F. Huang ◽  
W. Li
Keyword(s):  
Quantum Dots ◽  
Single Electron ◽  
Double Quantum ◽  
Capacitively Coupled ◽  
Double Quantum Dots

scholarly journals Dynamics of capacitively coupled double quantum dots

2006 ◽  
Vol 18 (29) ◽  
pp. 6571-6583 ◽  
Author(s):  
Martin R Galpin ◽  
David E Logan ◽  
H R Krishnamurthy
Keyword(s):  
Quantum Dots ◽  
Double Quantum ◽  
Capacitively Coupled ◽  
Double Quantum Dots

Current noise correlations in double quantum dots asymmetrically coupled to external leads

2010 ◽  
Vol 107 (3) ◽  
pp. 034314 ◽  
Author(s):  
Hai-Feng Lü ◽  
Jun-Rui Zhang ◽  
Tao Wu ◽  
Xiao-Tao Zu ◽  
Huai-Wu Zhang
Keyword(s):  
Quantum Dots ◽  
Current Noise ◽  
Double Quantum ◽  
Double Quantum Dots
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