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We perform experimental study of turbulent transport of nanoparticles in convective turbulence with the Rayleigh number $\sim 10^8$ in the air flow. We measure temperature field in many locations by a temperature probe equipped with 11…

Fluid Dynamics · Physics 2022-09-20 I. Shimberg , O. Shriki , O. Shildkrot , N. Kleeorin , A. Levy , I. Rogachevskii

The temperature distributions in current-carrying carbon nanotubes have been measured with a scanning thermal microscope. The obtained temperature profiles reveal diffusive and dissipative electron transport in multi-walled nanotubes and in…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Li Shi , Jianhua Zhou , Philip Kim , Adrian Bachtold , Arun Majumdar , Paul L. McEuen

We investigate the radiative coupling between two two-level atoms with arbitrarily polarized dipoles in the vicinity of a nanofiber. We present a systematic derivation for the master equation, the single- and cross-atom decay coefficients,…

Quantum Physics · Physics 2016-12-15 Fam Le Kien , Arno Rauschenbeutel

We present a systematic theoretical study of the Raman scattering effect for a two-level atomic system in near proximity of an ultrathin dielectric film with an embedded parallel array of periodically aligned single-wall semiconducting…

Mesoscale and Nanoscale Physics · Physics 2026-04-21 SK Firoz Islam , Michael Dean Pugh , Igor V. Bondarev

The flow of ions through permeable channels causes voltage drop in physiological nanodomains such as synapses, dendrites and dendritic spines, and other protrusions. How the voltage changes around channels in these nanodomains has remained…

Soft Condensed Matter · Physics 2025-01-10 Frédéric Paquin-Lefebvre , David Holcman

The inter-shell spacing of multi-walled carbon nanotubes was determined by analyzing the high resolution transmission electron microscopy images of these nanotubes. For the nanotubes that were studied, the inter-shell spacing…

Materials Science · Physics 2009-10-31 C. -H. Kiang , M. Endo , P. M. Ajayan , G. Dresselhaus , M. S. Dresselhaus

The simulation of field electron emission from arrays of micrometer-long open-ended (5, 5) carbon nanotubes is performed in the framework of quantum theory of many electrons. It is found that the applied external field is strongly screened…

Materials Science · Physics 2009-11-13 Guihua Chen , Weiliang Wang , Jie Peng , Chunshan He , Shaozhi Deng , Ningsheng Xu , Zhibing Li

Using a scattering technique based on a parametrized linear combination of atomic orbitals Hamiltonian, we calculate the ballistic quantum conductance of multi-wall carbon nanotubes. We find that inter-wall interactions not only block some…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 S. Sanvito , Y. -K. Kwon , D. Tománek , C. J. Lambert

We analyze the spatial dynamics of polarized atom vapor and present a mathematical method to eliminate the diffusion effect partially. It is found that the diffusion effect of polarized atoms can be regarded as a low pass filter in spatial…

Atomic Physics · Physics 2023-06-06 X. Y. Hu , H. F. Dong , H. C. Huang , L. Chen , Y. Gao

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 mechanism of the selective dispersion of single-walled carbon nanotubes (CNTs) by polyfluorene polymers is studied in this paper. Using extensive molecular dynamics simulations, it is demonstrated that diameter selectivity is the result…

Materials Science · Physics 2015-09-02 Hongliu Yang , Viktor Bezugly , Jens Kunstmann , Arianna Filoramo , Gianaurelio Cuniberti

The dynamics of the one-dimensional array of the single-walled carbon nanotubes, which interact by van der Waals forces, is considered. The molecular dynamics simulation shows that both the mutual displacements of the nanotubes and the…

Mesoscale and Nanoscale Physics · Physics 2022-09-07 Valeri V. Smirnov

In this article we investigate through molecular dynamics simulations the diffusion behavior of the TIP4P/2005 water when confined in pristine and deformed carbon nanotubes (armchair and zigzag). To analyze different diffusive mechanisms,…

Soft Condensed Matter · Physics 2021-02-03 Bruno H. S. Mendonça , Patricia Ternes , Evy Salcedo , Alan B. de Oliveira , Marcia C. Barbosa

This paper presents experimental results about transport of dilute suspensions of nano-objects in silicon-glass micrometric and sub-micrometric channels. Two kinds of objects are used: solid, rigid latex beads and spherical capsule-shaped,…

We develop and solve a continuum theory for the piezoelectric response of one dimensional nanotubes and nanowires, and apply the theory to study electromechanical effects in BN nanotubes. We find that the polarization of a nanotube depends…

Materials Science · Physics 2009-12-18 P. J. Michalski , Na Sai , E. J. Mele

Interfacial polar molecules feature a strongly anisotropic response to applied electric field, favoring dipole orientations parallel to the interface. In water, in particular, this effect combines with generic orientational preferences…

Soft Condensed Matter · Physics 2017-02-08 Dusan Bratko , Christopher D. Daub , Alenka Luzar

We study theoretically the plasmon scattering at the intersection of two metallic carbon nanotubes. We demonstrate that for a small angle of crossing, $\theta \ll 1$, the transmission coefficient is an oscillatory function of…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 V. V. Mkhitaryan , Y. Fang , J. Gerton , E. G. Mishchenko , M. E. Raikh

We study the propagation of three-dimensional (3D) bipolar ultrashort electromagnetic pulses in an inhomogeneous array of semiconductor carbon nanotubes. The heterogeneity is represented by a planar region with an increased concentration of…

Single walled carbon nanotubes with Pd ohmic contacts and lengths ranging from several microns down to 10 nm are investigated by electron transport experiments and theory. The mean free path (mfp) for acoustic phonon scattering is estimated…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Ali Javey , Jing Guo , Magnus Paulsson , Qian Wang , David Mann , Mark Lundstrom , Hongjie Dai

The equation of state of H2 adsorbed in the interstitial channels of a carbon nanotube bundle has been calculated using the diffusion Monte Carlo method. The possibility of a lattice dilation, induced by H2 adsorption, has been analyzed by…

Condensed Matter · Physics 2009-11-10 M. C. Gordillo , J. Boronat , J. Casulleras
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