Study of geometrical effects on the characteristics of metallic double-walled carbon nanotube waveguides through quantum hydrodynamics

Ahmadizadeh, Y.; Javaherian, C.; Shokri, Babak

doi:10.1063/1.3142468

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…Transport is an essential phenomena in atomic-scale devices and networks. The structure that hosts the energy or information carriers could be a continuous medium like metallic nanorods and waveguides [1,2] or sitebased structure like metallic nanoparticle arrays [3,4], quantum dot arrays [5,6], and many more. Discrete or site-based transport-considered in this work-has many applications such as quantum state transport through spin chains [7][8][9][10], quantum energy transport in chains of trapped ions, environment-assisted transport in networks of sites [11,12], and switching with qubit arrays [13].…”

Section: Introductionmentioning

confidence: 99%

Energy transport and optimal design of noisy Platonic quantum networks

Javaherian¹,

Ferrie²

2023

Phys. Scr.

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Optimal transport is one of the primary goals for designing eﬃcient quantum networks. In this work, the maximum transport is investigated for three-dimensional quantum networks with Platonic geometries aﬀected by dephasing and dissipative Markovian noise. The network and the environmental characteristics corresponding the optimal design are obtained and investigated for ﬁve Platonic networks with 4, 6, 8, 12, and 20 number of sites that one of the sites is connected to a sink site through a dissipative process. Such optimal designs could have various applications like switching and multiplexing in quantum circuits.

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Section: Introductionmentioning

confidence: 99%

Energy transport and optimal design of noisy Platonic quantum networks

Javaherian¹,

Ferrie²

2023

Phys. Scr.

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“…Quantum transport is widely studied in networks with the aim of achieving flexible transport of different types of excitations along one-dimensional space (1D) channels [4][5][6]. While the effects of system environment or fabrication disorders are inevitable, achieving high efficiency robust quantum transport in the face of such deleterious effects is the topic of this work.…”

Section: Introductionmentioning

confidence: 99%

Robustness of optimal transport in one-dimensional particle quantum networks

Javaherian

Twamley

2014

Phys. Rev. A

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We study the robustness of quantum transport in four-site one-dimensional (1D) particle quantum networks irreversibly connected to a target site in the presence of environmental dephasing noise. Under conditions of Markovian decoherence we define a quantity-which we denote as geometrical robustness-to quantify the robustness of transport with regard to the geometrical arrangement of the spin network. We examine the behavior of this geometrical robustness for both nearest and non-nearest site interactions and show that for some values of dephasing noise and other network parameters the robustness undergoes revivals, i.e., the robustness periodically increases with dephasing. In addition, we find that for high amounts of dephasing noise, the pattern of optimal network configurations changes noticeably from central symmetric configurations to laterally gathered ones, and we show that this change of pattern seems to occur for any number of network sites in the 1D chain.

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“…After reading very carefully the paper by Shokri and co-workers, 1 we observe that this work is largely a copy of our paper, 2 and also that no reference was made to our paper.…”

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confidence: 99%