Quantum computation with graphene nanoribbon

Guo, Guo-Ping; Lin, Zhirong; Tu, Tao; Cao, Gang; Li, Xiaopeng; Guo, Guang‐Can

doi:10.1088/1367-2630/11/12/123005

Cited by 60 publications

(52 citation statements)

References 37 publications

(39 reference statements)

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“…As a result of these properties, graphene is being investigated as a successor to silicon in mainstream electronics [18] and as a potential enabler of quantum computing [19], to name only a few examples.…”

Section: What Is Graphene?mentioning

confidence: 99%

Nanoporous graphene as a reverse osmosis membrane: Recent insights from theory and simulation

2015

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We review recent progress in the computational study of graphene as an RO membrane.• We introduce graphene and current knowledge about its mass transport properties. • We examine six key mechanisms that govern salt rejection in graphene. • Molecular dynamics have played a dominant role in the study of graphene membranes. • We suggest a greater role for quantumlevel simulations and macroscale computation.In this review, we examine the potential and the challenges of designing an ultrathin reverse osmosis (RO) membrane from graphene, focusing on the role of computational methods in designing, understanding, and optimizing the relationship between atomic structure and RO performance. In recent years, graphene has emerged as a promising material for improving the performance of RO. Beginning at the atomic scale and extending to the RO plant scale, we review applications of computational research that have explored the structure, properties and potential performance of nanoporous graphene in the context of RO desalination.

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Section: What Is Graphene?mentioning

confidence: 99%

Nanoporous graphene as a reverse osmosis membrane: Recent insights from theory and simulation

2015

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“…The hopping integrals are chosen to be 2.8 eV, 0.12 eV, and 0.068 eV for the nearest, the second nearest, and the third nearest neighbours, respectively. [18] Thus, the Hamiltonian reads…”

Section: Model Of Quantum Dots On Graphenementioning

confidence: 99%

Quantum computation with two-dimensional graphene quantum dots

Li¹,

Li²,

Yao³

2012

Chinese Phys. B

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We study an array of graphene nano sheets that form a two-dimensional S = 1/2 Kagome spin lattice used for quantum computation. The edge states of the graphene nano sheets are used to form quantum dots to confine electrons and perform the computation. We propose two schemes of bang-bang control to combat decoherence and realize gate operations on this array of quantum dots. It is shown that both schemes contain a great amount of information for quantum computation. The corresponding gate operations are also proposed.

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“…In this paper, we propose an alternative approach in which the localized states can exist in the zigzag region of a Z-shaped GNR. And Guo et al [15] have proposed a scheme to implement quantum computation with GNR in which each confined zigzag region of the GNR was modeled as a two-level qubit. Compared with previous works to form localized states, the proposed architecture confines electrons without exploiting confined gates, which greatly decreases the complexity of the circuits and the additional uncontrollable noise [15].…”

Section: Introductionmentioning

confidence: 99%

“…And Guo et al [15] have proposed a scheme to implement quantum computation with GNR in which each confined zigzag region of the GNR was modeled as a two-level qubit. Compared with previous works to form localized states, the proposed architecture confines electrons without exploiting confined gates, which greatly decreases the complexity of the circuits and the additional uncontrollable noise [15]. Owing to the advantages of Z-shaped GNRs, this mass sensor has the potential to break through the limitation of frequency restriction and weigh particles down to the yoctogram.…”

Section: Introductionmentioning

confidence: 99%

Nucleonic-resolution optical mass sensor based on a graphene nanoribbon quantum dot

Wen

Zhu

2013

Appl. Opt.

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The high frequency and ultrasmall mass of graphene make it an ideal material for ultrasensitive mass sensing. In this article, based on the all-optical technique, we propose a scheme of an optical mass sensor to weigh the mass of a single atom or molecule via a doubly clamped Z-shaped graphene nanoribbon (GNR). We use the detection of shifts in the resonance frequency of the Z-shaped GNR to determine the mass of an external particle landing on the GNR. The highly sensitive mass sensor proposed here can weigh particles down to the yoctogram and may eventually be enable to realize the mass measurement of nucleons.

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Quantum computation with graphene nanoribbon

Cited by 60 publications

References 37 publications

Nanoporous graphene as a reverse osmosis membrane: Recent insights from theory and simulation

Nanoporous graphene as a reverse osmosis membrane: Recent insights from theory and simulation

Quantum computation with two-dimensional graphene quantum dots

Nucleonic-resolution optical mass sensor based on a graphene nanoribbon quantum dot

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