نتایج جستجو برای: nonlocal parameter

تعداد نتایج: 227234  

Journal: :Physical review letters 2012
Aleksandra Maluckov Goran Gligorić Ljupčo Hadžievski Boris A Malomed Tilman Pfau

Density-wave patterns in discrete media with local interactions are known to be unstable. We demonstrate that stable double- and triple-period patterns (DPPs and TPPs), with respect to the period of the underlying lattice, exist in media with nonlocal nonlinearity. This is shown in detail for dipolar Bose-Einstein condensates, loaded into a deep one-dimensional optical lattice. The DPP and TPP ...

2000
S. Altieri L. H. Tjeng A. Tanaka G. A. Sawatzky

We present a core level X-ray photoelectron spectroscopy study of NixMg12xO crystals with 0.03,x,1. We show that nonlocal effects involving inter-Ni-site fluctuations strongly influence the Ni 2p core-level spectra for higher Ni concentrations including NiO itself. It is only in the very dilute Ni limit that the core-level spectra can be described in terms of an Anderson impurity model which al...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2006
Roberta Zambrini Francesco Papoff

We consider diffusive nonlinear systems with nonlocal two-points coupling, generally induced by misalignment in optical feedback. We expand the stability analysis in F. Papoff and R. Zambrini [Phys. Rev. Lett. 94, 243903 (2005)] to determine convective and absolute thresholds. Nonlocality leads to different effects in comparison to well-known problems with drift, as the existence of opposite ph...

2014
Tai-Ping Chang

In the present study, nonlinear free vibration behavior of nanobeam subjected to magnetic field is investigated based on Eringen’s nonlocal elasticity and Euler–Bernoulli beam theory. The Hamilton’s principal is adopted to derive the governing equations together with Euler–Bernoulli beam theory and the von-Kármán’s nonlinear strain–displacement relationships. An approximate analytical solution ...

D. Toghraie, H. Nahvi, S. Oveissi

In this study, the effect of small-scale of both nanostructure and nano-fluid flowing through it on the natural frequency and longitudinal wave propagation are investigated. Here, the stationary and axially moving single-walled carbon nanotube conveying fluid are studied. The boundary conditions for the stationary nanotube is considering clamped-clamped and pined-pined and for the axially movin...

The present paper investigates the potential application of graphene sheets with attached nanoparticles as resonant sensors by introducing a nonlocal shear deformation plate model. To take into account an elastic connection between the nanoplate and the attached nanoparticle, the nanoparticle is considered as a mass-spring system. Then, a combination of pseudo-spectral and integral quadrature m...

In this paper, Eringen’s nonlocal elasticity and Timoshenko beam theories are implemented to analyze the bending vibration for non-uniform nano-beams.  The governing equations and the boundary conditions are derived using Hamilton’s principle. A Generalized Differential Quadrature Method (GDQM) is utilized for solving the governing equations of non-uniform Timoshenko nano-beam for pinned-pinned...

In this paper, the wave propagation method is combined with nonlocal elasticity theory to analyze the buckling and free vibration of rectangular Reddy nanoplate. Wave propagation is one of the powerful methods for analyzing the vibration and buckling of structures. It is assumed that the plate has two opposite edges simply supported while the other two edges may be simply supported or clamped. ...

Journal: :Stochastic Analysis and Applications 2021

We generalize the Kolmogorov continuity theorem and prove of a class stochastic fields with parameter. As an application, we derive solutions for nonlocal parabolic equations driven by non-Gaussian Lévy noises.

Journal: :Science 2011
M Endres M Cheneau T Fukuhara C Weitenberg P Schauss C Gross L Mazza M C Bañuls L Pollet I Bloch S Kuhr

Quantum phases of matter are characterized by the underlying correlations of the many-body system. Although this is typically captured by a local order parameter, it has been shown that a broad class of many-body systems possesses a hidden nonlocal order. In the case of bosonic Mott insulators, the ground state properties are governed by quantum fluctuations in the form of correlated particle-h...

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