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Topological defects (e.g. pentagons, heptagons and pentagon-heptagon pairs) have been widely observed in large scale graphene and have been recognized to play important roles in tailoring the mechanical and physical properties of…

Mesoscale and Nanoscale Physics · Physics 2018-03-02 Bo Ni , Teng Zhang , Jiaoyan Li , Xiaoyan Li , Huajian Gao

In this letter, it is proposed that cryogenic quantum bits can operate based on the nonlinearity due to the quantum capacitance of two-dimensional Dirac materials, and in particular graphene. The anharmonicity of a typical superconducting…

Quantum Physics · Physics 2018-10-19 Sina Khorasani

We report on a large improvement in the wetting of Al2O3 thin films grown by un-seeded atomic layer deposition on monolayer graphene, without creating point defects. This enhanced wetting is achieved by greatly increasing the nucleation…

Materials Science · Physics 2014-11-14 Bruno Dlubak , Piran R. Kidambi , Robert S. Weatherup , Stephan Hofmann , John Robertson

The computation of the optical conductivity of strained and deformed graphene is discussed within the framework of quantum field theory in curved spaces. The analytical solutions of the Dirac equation in an arbitrary static background…

Materials Science · Physics 2015-12-01 W. de Paula , a. Chaves , O. Oliveira , T. Frederico

The discovery of unusual heat conduction properties of graphene has led to a surge of theoretical and experimental studies of phonon transport in two-dimensional material systems. The rapidly developing graphene thermal field spans from…

Materials Science · Physics 2016-02-01 Denis L. Nika , Alexander A. Balandin

We elaborate the idea of quantum computation through measuring the correlation of a gapped ground state, while the bulk Hamiltonian is utilized to stabilize the resource. A simple computational primitive, by pulling out a single spin…

Quantum Physics · Physics 2010-07-29 Akimasa Miyake

The exceptional electronic properties of monoatomic thin graphene sheets triggered numerous original transport concepts, pushing quantum physics into the realm of device technology for electronics, optoelectronics and thermoelectrics. At…

Materials Science · Physics 2016-04-21 M. Vondracek , M. Kucera , L. Fekete , J. Kopecek , J. Lancok , D. Kalita , J. Coraux , V. Bouchiat , J. Honolka

The possibility to control the commensurability and distance between graphene layers separated by a dielectric spacer is considered by the example of a heterostructure consisting of double-layer graphene separated by atomic layers of argon.…

Mesoscale and Nanoscale Physics · Physics 2013-09-24 Andrey M. Popov , Irina V. Lebedeva , Andrey A. Knizhnik , Yurii E. Lozovik , Boris V. Potapkin

Nanoporous graphene (NPG), consisting of ordered arrays of nanopores separated by graphene nanoribbons was recently realized using a bottom-up synthesis method (Science 360(2018), 199). In this work we accordingly explored the mechanical…

Mesoscale and Nanoscale Physics · Physics 2019-03-12 Bohayra Mortazavi , Mohamed E. Madjet , Masoud Shahrokhi , Said Ahzi , Xiaoying Zhuang , Timon Rabczuk

Bosonic atoms deposited on atomically thin substrates represent a playground for exotic quantum many-body physics due to the highly-tunable, atomic-scale nature of the interaction potentials. The ability to engineer strong interparticle…

Mesoscale and Nanoscale Physics · Physics 2024-02-26 Sang Wook Kim , Mohamed Elsayed , Nathan S. Nichols , Taras Lakoba , Juan Vanegas , Carlos Wexler , Valeri N. Kotov , Adrian Del Maestro

A great efficacy of molecular quantum chemistry applied to basic graphene problems has been recently demonstrated by the authors when studying the formation of peculiar composites between carbon nanotubes and graphene as well as considering…

Mesoscale and Nanoscale Physics · Physics 2011-02-07 Elena F Sheka , Nadezhda A Popova

The high computational cost of ab-initio methods limits their application in predicting electronic properties at the device scale. Therefore, an efficient method is needed to map the atomic structure to the electronic structure quickly.…

Materials Science · Physics 2025-09-09 Yunlong Wang , Zhixin Liang , Chi Ding , Junjie Wang , Zheyong Fan , Hui-Tian Wang , Dingyu Xing , Jian Sun

We develop the theory of quantum friction in two-dimensional topological materials. The quantum drag force on a metallic nanoparticle moving above such systems is sensitive to the non-trivial topology of their electronic phases, shows a…

Mesoscale and Nanoscale Physics · Physics 2018-05-02 M. Belén Farias , Wilton J. M. Kort-Kamp , Diego A. R. Dalvit

The characterization of quantum resources in dynamical systems is one of the most important problems to be addressed in quantum information theory. In this article, we investigate the behaviors of quantum correlations and teleportation…

Quantum Physics · Physics 2023-04-26 S. Bhuvaneswari , R. Muthuganesan , R. Radha

Realization of the quantum-spin-Hall effect in graphene devices has remained an outstanding challenge dating back to the inception of the field of topological insulators. Graphene's exceptionally weak spin-orbit coupling -stemming from…

Mesoscale and Nanoscale Physics · Physics 2019-04-05 K. Hatsuda , H. Mine , T. Nakamura , J. Li , R. Wu , S. Katsumoto , J. Haruyama

We theoretically investigate a folded bilayer graphene structure as an experimentally realizable platform to produce the one-dimensional topological zero-line modes. We demonstrate that the folded bilayer graphene under an external gate…

Mesoscale and Nanoscale Physics · Physics 2018-12-26 Tao Hou , Guanghui Chen , Wang-Kong Tse , Changgan Zeng , Zhenhua Qiao

We present perturbation theory for analysis of generic third-order nonlinear processes in graphene integrated photonic structures. Optical response of graphene is treated as the nonlinear boundary condition in Maxwell equations. The derived…

Optics · Physics 2016-07-13 Andrey V. Gorbach , Edouard Ivanov

We construct an effective Quantum Field Theory for the wrapping effects in 1+1 dimensional models of factorised scattering. The recently developed graph-theoretical approach to TBA gives the perturbative desctiption of this QFT. For the…

High Energy Physics - Theory · Physics 2022-05-06 Ivan Kostov

Monolayer graphene embedded with transition metal nitride (i.e., $X$N$_4$) has been experimentally synthesized recently, where a transition metal atom together with four nitrogen atoms as a unit are embedded in graphene to form a stable…

Materials Science · Physics 2022-02-02 Haonan Wang , Qian Niu , Zhenhua Qiao

In this paper, we use a topological quantum field theory (TQFT) to define families of new homology theories of a $2$-dimensional CW complex of a smooth closed surface. The dimensions of these homology groups can be used to count the number…

Geometric Topology · Mathematics 2023-03-22 Scott Baldridge , Ben McCarty