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Correlated dynamics of a Rabi oscillation and a quantum tunneling in coupled quantum dots

We couple the Rabi oscillation in a double quantum dot (DQD) with the quantum tunneling in another DQD by Coulomb interaction between the neighboring dots. Such a coupling leads to correlation of the Rabi oscillating electron and the quantum tunneling one, and gives a tendency of synchronizing them... Full description

Journal Title: Physica. E Low-dimensional systems & nanostructures, August 2015, Vol.72, pp.53-57
Main Author: Xie, Weidong
Other Authors: Chu, Bingxin , Duan, Suqing , Xie, Yan , Chu, Weidong , Yang, Ning , Zhao, Xian-Geng
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: ScienceDirect Journals (Elsevier)
ID: ISSN: 1386-9477 ; E-ISSN: 1873-1759 ; DOI: 10.1016/j.physe.2015.04.019
Link: http://dx.doi.org/10.1016/j.physe.2015.04.019
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recordid: elsevier_sdoi_10_1016_j_physe_2015_04_019
title: Correlated dynamics of a Rabi oscillation and a quantum tunneling in coupled quantum dots
format: Article
creator:
  • Xie, Weidong
  • Chu, Bingxin
  • Duan, Suqing
  • Xie, Yan
  • Chu, Weidong
  • Yang, Ning
  • Zhao, Xian-Geng
subjects:
  • Correlated Dyanmics
  • Rabi Oscillation
  • Quantum Tunneling
  • Quantum Dots
  • Correlated Dyanmics
  • Rabi Oscillation
  • Quantum Tunneling
  • Quantum Dots
  • Sciences (General)
  • Physics
ispartof: Physica. E, Low-dimensional systems & nanostructures, August 2015, Vol.72, pp.53-57
description: We couple the Rabi oscillation in a double quantum dot (DQD) with the quantum tunneling in another DQD by Coulomb interaction between the neighboring dots. Such a coupling leads to correlation of the Rabi oscillating electron and the quantum tunneling one, and gives a tendency of synchronizing them under appropriate Rabi frequency ΩR and tunneling rate Tc. The correlated oscillation is shown clearly in the tunneling current. As ΩR=Tc, the Rabi oscillation and the quantum tunneling reach their strongest correlation and the two electrons finish their complete transitions simultaneously. And then, a single optical signal accomplishes a gang control of two electrons. This result encourages superior design of two-qubit quantum gates based on correlated DQDs. •We couple a Rabi oscillating electron and a quantum tunneling one in a four-quantum-dot system.•We show the correlated dynamics of Rabi oscillation and quantum tunneling.•We reveal that the Rabi oscillation...
language: eng
source: ScienceDirect Journals (Elsevier)
identifier: ISSN: 1386-9477 ; E-ISSN: 1873-1759 ; DOI: 10.1016/j.physe.2015.04.019
fulltext: fulltext
issn:
  • 1386-9477
  • 13869477
  • 1873-1759
  • 18731759
url: Link


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titleCorrelated dynamics of a Rabi oscillation and a quantum tunneling in coupled quantum dots
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subjectCorrelated Dyanmics ; Rabi Oscillation ; Quantum Tunneling ; Quantum Dots ; Correlated Dyanmics ; Rabi Oscillation ; Quantum Tunneling ; Quantum Dots ; Sciences (General) ; Physics
descriptionWe couple the Rabi oscillation in a double quantum dot (DQD) with the quantum tunneling in another DQD by Coulomb interaction between the neighboring dots. Such a coupling leads to correlation of the Rabi oscillating electron and the quantum tunneling one, and gives a tendency of synchronizing them under appropriate Rabi frequency ΩR and tunneling rate Tc. The correlated oscillation is shown clearly in the tunneling current. As ΩR=Tc, the Rabi oscillation and the quantum tunneling reach their strongest correlation and the two electrons finish their complete transitions simultaneously. And then, a single optical signal accomplishes a gang control of two electrons. This result encourages superior design of two-qubit quantum gates based on correlated DQDs. •We couple a Rabi oscillating electron and a quantum tunneling one in a four-quantum-dot system.•We show the correlated dynamics of Rabi oscillation and quantum tunneling.•We reveal that the Rabi oscillation...
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titleCorrelated dynamics of a Rabi oscillation and a quantum tunneling in coupled quantum dots
description

We couple the Rabi oscillation in a double quantum dot (DQD) with the quantum tunneling in another DQD by Coulomb interaction between the neighboring dots. Such a coupling leads to correlation of the Rabi oscillating electron and the quantum tunneling one, and gives a tendency of synchronizing them under appropriate Rabi frequency ΩR and tunneling rate Tc. The correlated oscillation is shown clearly in the tunneling current. As ΩR=Tc, the Rabi oscillation and the quantum tunneling reach their strongest correlation and the two electrons finish their complete transitions simultaneously. And then, a single optical signal accomplishes a gang control of two electrons. This result encourages superior design of two-qubit quantum gates based on correlated DQDs.

•We couple a Rabi oscillating electron and a quantum tunneling one in a four-quantum-dot system.•We show the correlated dynamics of Rabi oscillation and quantum tunneling.•We reveal that the Rabi oscillation...

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We couple the Rabi oscillation in a double quantum dot (DQD) with the quantum tunneling in another DQD by Coulomb interaction between the neighboring dots. Such a coupling leads to correlation of the Rabi oscillating electron and the quantum tunneling one, and gives a tendency of synchronizing them under appropriate Rabi frequency ΩR and tunneling rate Tc. The correlated oscillation is shown clearly in the tunneling current. As ΩR=Tc, the Rabi oscillation and the quantum tunneling reach their strongest correlation and the two electrons finish their complete transitions simultaneously. And then, a single optical signal accomplishes a gang control of two electrons. This result encourages superior design of two-qubit quantum gates based on correlated DQDs.

•We couple a Rabi oscillating electron and a quantum tunneling one in a four-quantum-dot system.•We show the correlated dynamics of Rabi oscillation and quantum tunneling.•We reveal that the Rabi oscillation...

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lad01Physica. E, Low-dimensional systems & nanostructures
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