Transport through a non-Hermitian parallel double-quantum-dot structure in the presence of interdot Coulomb interaction

被引：6
|
作者：
Zhang, Lian-Lian [1 ]
Zhan, Guo-Hui [1 ]
Yu, Dian-Qiang [1 ]
Gong, Wei-Jiang [1 ]
机构：
[1] Northeastern Univ, Coll Sci, Shenyang 110819, Liaoning, Peoples R China
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2018年 / 113卷
关键词：
Double quantum dot; PT-symmetric complex potentials; Transport property; Interdot Coulomb interaction; PARITY-TIME SYMMETRY; LATTICES;
D O I：
10.1016/j.spmi.2017.11.040
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this work, we investigate the effect of PT-symmetric complex potentials on the transport properties of one non-Hermitian system, which is formed by a parallel coupled double-quantum-dot geometry. It is found that the PT-symmetric complex potentials take pronounced effects to the transport properties of such a system, manifested as the occurrence of antiresonance. In the presence of the interdot Coulomb interaction, such potentials lead to the shift and increase of the antiresonance points, dependent on the Coulomb interaction strength. This study exhibits the special impact of the interplay between the interdot Coulomb interaction and PT-symmetric potentials on the quantum transport behaviors. (C) 2017 Elsevier Ltd. All rights reserved.
引用
下载
收藏
页码：558 / 565
页数：8
相关论文
共 50 条
  • [31] Time-dependent transport through a quantum dot: influence of the Coulomb interaction on the quantum dot charge states
    Taranko, R.
    Parafiniuk, P.
    EUROPEAN PHYSICAL JOURNAL B, 2011, 84 (01): : 89 - 97
  • [32] Time-dependent transport through a quantum dot: influence of the Coulomb interaction on the quantum dot charge states
    R. Taranko
    P. Parafiniuk
    The European Physical Journal B, 2011, 84 : 89 - 97
  • [33] Non-equilibrium electronic transport through a quantum dot with strong Coulomb repulsion in the presence of a magnetic field
    Zhuravel, Denis
    Anchishkin, Dmitry, V
    Hayn, Roland
    Lombardo, Pierre
    Schafer, Steffen
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2020, 32 (16)
  • [34] Wave transport and statistical properties of an open non-Hermitian quantum dot with parity-time symmetry
    Wahlstrand, B.
    Yakimenko, I. I.
    Berggren, K. -F.
    PHYSICAL REVIEW E, 2014, 89 (06):
  • [35] A Feynman path analysis of the Fano effect in electronic transport through a parallel double quantum dot structure
    Gong, Weijiang
    Zheng, Yisong
    Liu, Yu
    L, Tianquan
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (03): : 618 - 626
  • [36] Magnetic-flux-controlled giant Fano factor for coherent Tunneling through a parallel double-quantum-dot
    Dong, Bing
    Lei, Xiao-Lin
    Cui, Hong-Liang
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2008, 49 (04) : 1045 - 1048
  • [37] Magnetic-Flux-Controlled Giant Fano Factor for Coherent Tunneling Through a Parallel Double-Quantum-Dot
    DONG Bing~1 LEI Xiao-Lin~1 CUI Hong-Liang~21 Department of Physics
    Communications in Theoretical Physics, 2008, 49 (04) : 1045 - 1048
  • [38] Influence of Rashba spin-orbit coupling on Fano-Kondo effect in a parallel double-quantum-dot structure
    Jing Shan
    Yun-Gang Wang
    Yu Wang
    Hui-Min Wang
    Yu Han
    Journal of the Korean Physical Society, 2014, 64 : 429 - 435
  • [39] Effect of Coulomb correlation on electron transport through a concentric quantum ring-quantum dot structure
    Chwiej, T.
    Kutorasinski, K.
    PHYSICAL REVIEW B, 2010, 81 (16):
  • [40] Influence of Rashba spin-orbit coupling on Fano-Kondo effect in a parallel double-quantum-dot structure
    Shan, Jing
    Wang, Yun-Gang
    Wang, Yu
    Wang, Hui-Min
    Han, Yu
    JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2014, 64 (03) : 429 - 435
12345