scholarly journals Non-Markovian dynamics of a double quantum dot charge qubit with static bias

2007 ◽  
Vol 76 (11) ◽  
Author(s):  
Xiufeng Cao ◽  
Hang Zheng
Keyword(s):  
Quantum Dot ◽  
Double Quantum ◽  
Charge Qubit ◽  
Double Quantum Dot ◽  
Markovian Dynamics

scholarly journals Non-Markovian Dynamics of Geometric Quantum Discord in a Double Quantum Dot System

2021 ◽  
Author(s):  
Arapat Ablimit ◽  
Dildar Hitjan ◽  
Ahmad Abliz
Keyword(s):  
Quantum Dot ◽  
Master Equation ◽  
Quantum Discord ◽  
Bath Temperature ◽  
Diffusion Method ◽  
Double Quantum ◽  
Charge Qubit ◽  
Geometric Quantum Discord ◽  
Double Quantum Dot ◽  
Markovian Dynamics

AbstractIn this paper, we study the geometric quantum discord dynamics of the double quantum dot charge qubit in the non-Markovian environment. We apply the non-perturbative non-Markovian quantum state diffusion method to obtain the exact master equation of the double quantum dot system coupled to two independent non-zero temperature electronic baths. Then, we use this master equation to investigate the effects of non-Markovianity, inter-dot coupling strength and bath temperature on the dynamics of geometric quantum discord. Our studies show that the geometric quantum discord of a double quantum dot system can be modified and enhanced in some cases via these factors.

Single-electron charge qubit in a double quantum dot

2006 ◽  
pp. 279-287 ◽  
Author(s):  
Toshimasa Fujisawa ◽  
Toshiaki Hayashi ◽  
Sung Woo Jung ◽  
Yoon-Ha Jeong ◽  
Yoshiro Hirayama
Keyword(s):  
Quantum Dot ◽  
Single Electron ◽  
Double Quantum ◽  
Electron Charge ◽  
Charge Qubit ◽  
Double Quantum Dot

scholarly journals Tunable phonon-induced steady-state coherence in a double-quantum-dot charge qubit

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Archak Purkayastha ◽  
Giacomo Guarnieri ◽  
Mark T. Mitchison ◽  
Radim Filip ◽  
John Goold
Keyword(s):  
Steady State ◽  
Quantum Dot ◽  
Double Quantum ◽  
Charge Qubit ◽  
Double Quantum Dot

scholarly journals Ultrafast Manipulation of a Double Quantum-Dot Charge Qubit Using Lyapunov-Based Control Method

2015 ◽  
Vol 51 (8) ◽  
pp. 1-8 ◽  
Author(s):  
Shuang Cong ◽  
Ming-Yong Gao ◽  
Gang Cao ◽  
Guang-Can Guo ◽  
Guo-Ping Guo
Keyword(s):  
Quantum Dot ◽  
Control Method ◽  
Double Quantum ◽  
Charge Qubit ◽  
Double Quantum Dot

scholarly journals Shot noise spectrum of a double quantum dot charge qubit

2010 ◽  
Vol 59 (5) ◽  
pp. 2971
Author(s):  
Shi Zhen-Gang ◽  
Wen Wei ◽  
Chen Xiong-Wen ◽  
Xiang Shao-Hua ◽  
Song Ke-Hui
Keyword(s):  
Quantum Dot ◽  
Shot Noise ◽  
Noise Spectrum ◽  
Double Quantum ◽  
Charge Qubit ◽  
Double Quantum Dot

scholarly journals Phonon decoherence of a double quantum dot charge qubit

2005 ◽  
Vol 71 (20) ◽  
Author(s):  
Serguei Vorojtsov ◽  
Eduardo R. Mucciolo ◽  
Harold U. Baranger
Keyword(s):  
Quantum Dot ◽  
Double Quantum ◽  
Charge Qubit ◽  
Double Quantum Dot
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