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The Zitterbewegung (ZB) effect is investigated in graphene with spacially modulated potential near the original Dirac point (ODP) and extra Dirac points (EDPs). Our calculations show that to get the large ZB oscillations, the wave packet…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 Abdellatif Kamal , Ahmed Jellal

The generation of quantum entanglement between phonons in photoirradiated remote electron-phonon systems is numerically studied. Upon excitation by a visible/ultraviolet laser pulse, the entanglement of electrons is immediately generated…

Mesoscale and Nanoscale Physics · Physics 2021-10-13 Kunio Ishida , Hiroaki Matsueda

Electronic transport in a carbon nanotube (CNT) metal-oxide-semiconductor field effect transistor (MOSFET) is simulated using the non-equilibrium Green's functions method with the account of electron-phonon scattering. For MOSFETs,…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Siyu Koswatta , Mark S. Lundstrom , M. P. Anantram , Dmitri E. Nikonov

Electronic states in nanographite ribbons with zigzag edges are studied using the extended Hubbard model with nearest neighbor Coulomb interactions. The electronic states with the opposite electric charges separated along both edges are…

Quantum Physics · Physics 2007-05-23 Kikuo Harigaya

The article reviews recent progress in the theoretical understanding of near-field surface electromagnetic phenomena in pristine and atomically doped carbon nanotubes. The phenomena involving strong coupling effects are outlined. They are…

Mesoscale and Nanoscale Physics · Physics 2010-11-01 I. V. Bondarev

Quantum emitters in two-dimensional hexagonal boron nitride (h-BN) have generated significant interest due to observations of ultra-bright emission made at room temperature. The expectation that solid-state emitters exhibit broad…

Addressing the feasibility of quantum communication with entangled electrons in an interacting many-body environment, we propose an interference experiment using a scattering set-up with an entangler and a beam splitter. It is shown that,…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Guido Burkard , Daniel Loss , Eugene V. Sukhorukov

With the use of the semiclassical Boltzmann equation we have calculated a direct current (d.c) in undoped zigzag carbon nanotube (CN) by mixing two coherent electromagnetic waves with commensurate frequencies i.e and . This effect is…

Mesoscale and Nanoscale Physics · Physics 2010-02-18 S. Y. Mensah , S. S. Abukari , N. G. Mensah , K. A. Dompreh , A. Twum , F. K. A. Allotey

The effects of neutron irradiation on materials are often interpreted in terms of atomic recoils, initiated by neutron impacts and producing crystal lattice defects. In addition, there is a remarkable two-step process, strongly pronounced…

Materials Science · Physics 2023-06-19 Luca Reali , Mark R. Gilbert , Max Boleininger , Sergei L. Dudarev

Dynamics of non-interacting ultracold atoms with artificial spin-orbit coupling is considered. Spin-orbit coupling is created using two moving optical lattices with orthogonal polarizations. Our main goal is to study influence of lattice…

Quantum Gases · Physics 2016-09-21 V. Yu. Argonov , D. V. Makarov

Tho-photon absorption holds potential for many practical applications. We theoretically investigate the onset of this phenomenon in a semiconductor quantum dot -- metallic nanoshell composite subjected to a resonant CW excitation.…

Mesoscale and Nanoscale Physics · Physics 2021-01-08 Bintoro S. Nugroho , Alexander A. Iskandar , Victor A. Malyshev , Jasper Knoester

A recent study [Rosati, Dolcini, and Rossi, Appl. Phys. Lett. 106, 243101 (2015)] has predicted that, while in semiconducting single-walled carbon nanotubes (SWNTs) an electronic wave packet experiences the typical spatial diffusion of…

Mesoscale and Nanoscale Physics · Physics 2015-12-25 R. Rosati , F. Dolcini , F. Rossi

The dynamics of itinerant electrons in topological insulator (TI) thin films is investigated using a multi-band decomposition approach. We show that the electron trajectory in the 2D film is anisotropic and confined within a characteristic…

Mesoscale and Nanoscale Physics · Physics 2020-06-18 Cong Son Ho , Zhuo Bin Siu , Seng Ghee Tan , Mansoor B. A. Jalil

We observe photothermal self-oscillations in individual, suspended, quasi-metallic carbon nanotube (CNT) pn devices irradiated with focused CW 633nm light. Here, the bottom of the trench forms an optical cavity with an anti-node at…

Mesoscale and Nanoscale Physics · Physics 2016-09-30 Moh. R. Amer , Tony Levi , Stephen B. Cronin

We investigate the scattering of an electron by phonons in a small structure between two one-dimensional tight-binding leads. This model mimics the quantum electron transport through atomic wires or molecular junctions coupled to metallic…

Strongly Correlated Electrons · Physics 2017-02-27 C. Brockt , E. Jeckelmann

Carbon nanotubes (CNT) have a very large application potential in the rapid developing field of molecular electronics. Infinite single-wall metallic CNTs have theoretically a conductance of 4e2/h because of the two electronic bands crossing…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 N. Ranjan , R. Gutierrez-Laliga , S. Krompiewski , G. Cuniberti

We show that when an electron or photon propagates in a cylindrically symmetric waveguide, it experiences both a zitterbewegung effect and a spin-orbit interaction leading to identical propagation dynamics for both particles. Applying a…

Quantum Physics · Physics 2015-06-17 C. C. Leary , Karl H. Smith

The radiation of photons by electrons is investigated in the framework of quantum electrodynamics up to the second order in the coupling constant $e$. The $N$-particle, coherent, and thermal initial states are considered and the forms of…

High Energy Physics - Theory · Physics 2022-09-08 P. O. Kazinski , T. V. Solovyev

The density matrix equations of motion in near-degenerate three-level V-type closed-loop atomic system are calculated numerically in Floquet frame. The dynamical behavior of atom- photon entanglement between the dressed atom and its…

Atomic and Molecular Clusters · Physics 2015-07-01 Zeinab Kordi , Saeed Ghanbari , Mohammad Mahmoudi

The present paper is a review of the phenomena related to non-equilibrium electron relaxation in bulk and nano-scale metallic samples. The workable Two-Temperature Model (TTM) based on Boltzmann-Bloch-Peierls (BBP) kinetic equation has been…

Statistical Mechanics · Physics 2009-03-23 Navinder Singh
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