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Non-Hermitian systems have recently shown new possibilities to manipulate wave scattering by exploiting loss, yet coherent perfect absorption at an exceptional point (CPA EP) remains elusive in acoustics. Here we demonstrate it based on a…

应用物理 · 物理学 2025-06-06 Yi-Fei Xia , Zi-Xiang Xu , Yu-Ting Yan , An Chen , Jing Yang , Bin Liang , Jian-Chun Cheng , Johan Christensen

The standard nonlinear Schr\"{o}dinger equation (NLSE) is one of the elegant equations to find the information about the modulational instability criteria of dust-ion-acoustic (DIA) waves (DIAWs) and associated DIA rogue waves (DIARWs) in a…

等离子体物理 · 物理学 2021-01-08 A. A. Noman , M. K. Islam , M. Hassan , S. Banik , N. A. Chowdhury , A. Mannan , A. A. Mamun

The system of electron beam - degenerate Fermi gas in a magnetic field is investigated. Instabilities of the quantized longitudinal electric waves are studied by a newly derived dispersion equation. Novel branches of longitudinal waves are…

等离子体物理 · 物理学 2010-05-20 Levan N. Tsintsadze

The dust-acoustic waves and their stability driven by a flowing dusty plasma when it cross through a static (target) dusty plasma (the so-called permeating dusty plasma) are investigated when the components of the dusty plasma obey the…

等离子体物理 · 物理学 2015-08-10 Jingyu Gong , Zhipeng Liu , Jiulin Du

In this paper, we provide a theoretical description, and calculate, the nonlinear frequency shift, group velocity and collionless damping rate, $\nu$, of a driven electron plasma wave (EPW). All these quantities, whose physical content will…

等离子体物理 · 物理学 2009-10-29 Didier Bénisti , Olivier Morice , Laurent Gremillet , David J. Strozzi

The decays of the Langmuir waves in dense plasmas are computed using the dielectric function theory widely used in the solid state physics. Four cases are considered: a classical plasma, a Maxwellian plasma, a degenerate quantum plasma, and…

等离子体物理 · 物理学 2010-04-29 S. Son , S. Ku , Sung Joon Moon

The quantum electrodynamical (QED) short wavelength correction on plasma wave propagation for a non-relativistic quantum plasma is investigated. A general dispersion relation for a thermal multi-component quantum plasma is derived. It is…

等离子体物理 · 物理学 2009-03-19 J. Lundin , J. Zamanian , M. Marklund , G. Brodin

Abstract An exceptional point of degeneracy (EPD) is induced in a system made of an electron beam interacting with an electromagnetic (EM) guided mode. This enables a degenerate synchronous regime in backward wave oscillators (BWOs) where…

应用物理 · 物理学 2021-06-16 Tarek Mealy , Ahmed F. Abdelshafy , Filippo Capolino

This letter describes a new phenomenon on the Parker Solar Probe of recurring plasma density enhancements that have $\Delta$n/n ~10% and that occur at a repetition rate of ~5 Hz. They were observed sporadically for about five hours between…

太阳与恒星天体物理 · 物理学 2023-08-01 F. S. Mozer , O. Agapitov , S. D. Bale , R. Livi , O. Romeo , K. Sauer , I. Y. Vasko , J. Verniero

A formulation for the parametric instability of electromagnetic (EM) waves in magnetized pair plasma is developed. The linear growth rate of induced Compton scattering is derived analytically for frequencies below the cyclotron frequency…

高能天体物理现象 · 物理学 2025-03-14 Rei Nishiura , Shoma F. Kamijima , Masanori Iwamoto , Kunihito Ioka

It seems having been firmly established that surface plasma waves (SPWs) could exist on any metal surfaces, including those of the ideal hard-wall type frequently employed in \textit{ab initio} studies of the dielectric responses of metals.…

介观与纳米尺度物理 · 物理学 2020-09-14 Hai-Yao Deng

The modulational instability (MI) of ion-acoustic (IA) waves (IAWs) and associated IA rogue waves (IARWs) in double pair plasma containing non-extensive electrons, iso-thermal positrons, negatively and positively charged ions have been…

等离子体物理 · 物理学 2020-12-18 S. Jahan , M. N. Haque , N. A. Chowdhury , A. Mannan , A. A. Mamun

A standard nonlinear Schr\"{o}dinger equation has been established by using the reductive perturbation method to investigate the propagation of electrostatic dust-acoustic waves, and their modulational instability as well as the formation…

等离子体物理 · 物理学 2020-08-25 R. K. Shikha , N. A. Chowdhury , A. Mannan , A. A. Mamun

The nonlinear propagation of dust-acoustic (DA) waves (DAWs) and associated DA rogue waves (DARWs), which are governed by the nonlinear Schr\"{o}dinger equation, is theoretically investigated in a four component plasma medium containing…

等离子体物理 · 物理学 2020-04-22 S. K. Paul , N. A. Chowdhury , A. Mannan , A. A. Mamun

In the extreme high intensity regime of electromagnetic (EM) waves in plasma, the acceleration process is found to be dominated by the ponderomotive acceleration (PA). While the wakefields driven by the ponderomotive force of the…

加速器物理 · 物理学 2023-10-18 Calvin Lau , Po-Chun Yeh , Onnie Luk , Joseph McClenaghan , Toshikazu Ebisuzaki , Toshiki Tajima

The nonlinear propagation of large amplitude dust ion-acoustic (DIA) solitary waves (SWs) in an ion-beam plasma with stationary charged dusts is investigated. For typical plasma parameters relevant for experiments [J. Plasma Phys.…

等离子体物理 · 物理学 2011-12-30 A. P. Misra , N. C. Adhikary

The diffusion of electronic wave packets in one-dimensional systems with on-site, binary disorder is numerically investigated within the framework of a single-band tight-binding model. Fractal properties are incorporated by assuming that…

无序系统与神经网络 · 物理学 2008-07-07 P. R. Wells , J. d'Albuquerque e Castro , S. L. A. de Queiroz

Although, for current laser pulse energies, the weakly nonlinear regime of LWFA is known to be the optimal for reaching the highest possible electron energies, the capabilities of upcoming large laser systems will provide the possibility of…

等离子体物理 · 物理学 2017-04-06 Erik Wallin , Arkady Gonoskov , Christopher Harvey , Olle Lundh , Mattias Marklund

The nonlinear propagation of two-dimensional (2D) quantum ion-acoustic waves (QIAWs) is studied in a quantum electron-ion plasma. By using a 2D quantum hydrodynamic model and the method of multiple scales, a new set of coupled nonlinear…

等离子体物理 · 物理学 2009-12-23 Amar P. Misra , Mattias Marklund , Gert Brodin , Padma K. Shukla

There is considerable interest in the application of quantum information science to advance computations in plasma physics. Many of the topics in fusion plasma physics are classical in nature. In order to implement them on quantum computers…

等离子体物理 · 物理学 2024-06-12 Abhay K. Ram , George Vahala , Linda Vahala , Min Soe