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The generation of higher harmonics of the magnetoplasmon frequency which has recently been reported in strongly coupled two-dimensional Yukawa systems is investigated in detail and, in addition, extended to two-dimensional Coulomb systems.…

Plasma Physics · Physics 2011-04-19 T. Ott , M. Bonitz , P. Hartmann , Z. Donko

The existence of plasma oscillations at multiples of the magnetoplasmon frequency in a strongly coupled two-dimensional magnetized Yukawa plasma is reported, based on extensive molecular dynamics simulations. These modes are the analogues…

Plasma Physics · Physics 2015-05-18 M. Bonitz , Z. Donko , T. Ott , H. Kaehlert , P. Hartmann

We analyze via theoretical approaches and molecular dynamics simulations the collective mode structure of strongly coupled two-dimensional binary Yukawa systems, for selected density, mass and charge ratios, both in the liquid and…

Plasma Physics · Physics 2013-05-31 Gabor J. Kalman , Peter Hartmann , Zoltan Donko , Kenneth I. Golden , Stamatios Kyrkos

We analyze the acoustic collective excitations in two- and three-dimensional binary Yukawa systems, consisting of two components with different masses. Theoretical analysis reveals a profound difference between the weakly and strongly…

Plasma Physics · Physics 2012-08-07 Gabor J. Kalman , Zoltán Donkó , Peter Hartmann , Kenneth I. Golden

Thermally excited phonon spectra of 2D Yukawa solids and liquids in the presence of an external magnetic field are studied using computer simulations. Special attention is paid to the variation of wave spectra in terms of several key…

Plasma Physics · Physics 2009-07-21 L. J. Hou , P. K. Shukla , A. Piel , Z. L. Miskovic

We report on a new contribution to the microwave response of a two-dimensional electron system in magnetic field which originates from excitation of virtual Bernstein modes. These collective modes emerge as a result of interaction between…

Mesoscale and Nanoscale Physics · Physics 2014-05-16 V. A. Volkov , A. A. Zabolotnykh

Electrons on the liquid helium surface form an extremely clean two dimensional system where different plasmon-excitations can coexist. Under a magnetic field time reversal symmetry is broken and all the bulk magneto-plasmons become gaped at…

Mesoscale and Nanoscale Physics · Physics 2021-02-17 A. D. Chepelianskii , D. Papoular , H. Bouchiat , K. Kono

We investigate via Molecular Dynamics simulations the propagation of solitons in a two-dimensional many-body system characterized by Yukawa interaction potential. The solitons are created in an equilibrated system by the application of…

Plasma Physics · Physics 2019-10-30 Z. Donko , P. Hartmann , R. U. Masheyeva , K. N. Dzhumagulova

Observations made in dusty plasma experiments suggest that an ensemble of electrically charged solid particles, confined in an elongated trap, develops structural inhomogeneities. With narrowing the trap the particles tend to form layers…

Plasma Physics · Physics 2021-01-25 Hong Pan , Gabor J. Kalman , Peter Hartmann

Bernstein modes are formed as a result of non-local coupling of collective excitations and cyclotron harmonics in magnetized plasma. In degenerate solid state plasma they are typically associated with magnetoplasmons. A different type of…

Mesoscale and Nanoscale Physics · Physics 2023-12-19 A. N. Afanasiev , P. S. Alekseev , A. A. Greshnov , M. A. Semina

In dusty (complex) plasmas, containing mesoscopic charged grains, the grain-grain interaction in many cases can be well described through a Yukawa potential. In this Review we summarize the basics of the computational and theoretical…

Plasma Physics · Physics 2009-11-13 Zoltan Donko , Gabor J. Kalman , Peter Hartmann

Molecular dynamics simulations of two-dimensional soft Yukawa fluids are performed to analyze the effect that the range of interaction has on coexisting densities and line tension. The attractive one-component fluid and equimolar mixtures…

Soft Condensed Matter · Physics 2012-07-16 G. A. Méndez-Maldonado , M. González-Melchor , J. Alejandre

We consider a classical system of two-dimensional (2D) charged particles, which interact through a repulsive Yukawa potential $exp(-r/\lambda)/r$, confined in a parabolic channel which limits the motion of the particles in the…

Soft Condensed Matter · Physics 2015-05-19 J. C. N. Carvalho , W. P. Ferreira , G. A. Farias , F. M. Peeters

Bernstein modes -- hybrid magnetoplasmon excitations arising from the coupling between cyclotron motion and collective oscillations in two-dimensional electron systems -- offer direct access to non-local electrodynamics. These modes can…

We construct a supersymmetric composite model in type IIA T^6/(Z_2 x Z_2) orientifold with intersecting D6-branes. Four generations of quarks and leptons are naturally emerged as composite fields at low energies. Two pairs of light…

High Energy Physics - Theory · Physics 2008-11-26 Noriaki Kitazawa

An analysis of superdiffusion in two-dimensional strongly correlated Yukawa liquids is presented. In particular, we report a regular, montonic behavior of the diffusion exponent on the screening parameter.

Plasma Physics · Physics 2015-05-13 T. Ott , M. Bonitz , P. Hartmann

The equilibrium structure and the dispersion relations of collective excitations in trilayer Yukawa systems in the strongly coupled liquid regime are examined. The equilibrium correlations reveal a variety of structures in the liquid phase,…

Plasma Physics · Physics 2020-10-14 Hong Pan , Gabor J. Kalman , Peter Hartmann , Zoltán Donkó

In a system consisting of two different charged species we identify the excitation of a second, low frequency plasmon. At strong coupling the doublet of high frequency (first) and low frequency (second) plasmons replaces the single plasmon…

Plasma Physics · Physics 2015-06-19 Gabor J. Kalman , Zoltan Donko , Peter Hartmann , Kenneth I. Golden

Spiral wave formations are ubiquitous in nature. In the present paper, the excitation of spiral waves in the context of driven two-dimensional dusty plasma (Yukawa system) has been demonstrated at particle level using molecular dynamics…

Plasma Physics · Physics 2018-06-13 Sandeep Kumar , Amita Das

In this article, we present an ongoing lattice study of the Higgs-Yukawa model, in the regime of strong-Yukawa coupling, using overlap fermions. We investigated the phase structure in this regime by computing the Higgs vacuum expectation…

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