Cylindrical and spherical ion-acoustic envelope solitons in multicomponent plasmas with positrons

Sabry, R.; Moslem, W. M.; Shukła, P. K.; Saleem, H.

doi:10.1103/physreve.79.056402

Cited by 61 publications

(33 citation statements)

References 31 publications

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“…Linear aspects of the system have been considered in several studies (Iwamoto, 1993;Stewart and Laing, 1992;Zank and Greaves, 1995). Nonlinear processes have been a particularly rich area including such aspects as solitary waves (Dubinov et al, 2006;El-Shamy et al, 2010;Ghosh et al, 2012;Gordienko and Dubinov, 2008;Roy et al, 2012;Sabry, 2009), solitons (Cattaert and Kourakis, 2005;Sabry et al, 2009;Zank and Greaves, 1995), double layers (Alterkop et al, 2007;Mishra et al, 2007), collisionless reconnection processes (Bessho and Bhattacharjee, 2005;Hosseinpour and Vekstein, 2008) electrostatic and electromagnetic wave phenomena (El-Taibany and Mamun, 2012;Ghosh et al, 2012;Gordienko and Dubinov, 2007;Kourakis et al, 2007;Mushtaq and Khan, 2008), and vortices (Shukla et al, 2003).…”

Section: Classical Electron-positron (Pair) Plasmasmentioning

confidence: 99%

Plasma and trap-based techniques for science with positrons

Danielson¹,

Dubin²,

Greaves³

et al. 2015

Rev. Mod. Phys.

226

222

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In recent years, there has been a wealth of new science involving low-energy antimatter (i.e., positrons and antiprotons) at energies ranging from 10 2 to less than 10 −3 eV. Much of this progress has been driven by the development of new plasma-based techniques to accumulate, manipulate and deliver antiparticles for specific applications. This article focuses on the advances made in this area using positrons. However many of the resulting techniques are relevant to antiprotons as well. An overview is presented of relevant theory of single-component plasmas in electromagnetic traps. Methods are described to produce intense sources of positrons and to efficiently slow the typically energetic particles thus produced. Techniques are described to trap positrons efficiently and to cool and compress the resulting positron gases and plasmas. Finally, the procedures developed to deliver tailored pulses and beams (e.g., in intense, short bursts, or as quasi-monoenergetic continuous beams) for specific applications are reviewed. The status of development in specific application areas is also reviewed. One example is the formation of antihydrogen atoms for fundamental physics [e.g., tests of invariance under charge conjugation, parity inversion and time reversal (the CPT theorem), and studies of the interaction of gravity with antimatter]. Other applications discussed include atomic and materials physics studies and study of the electron-positron many-body system, including both classical electron-positron plasmas and the complementary quantum system in the form of Bose-condensed gases of positronium atoms. Areas of future promise are also discussed. The review concludes with a brief summary and a list of outstanding challenges.

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Section: Classical Electron-positron (Pair) Plasmasmentioning

confidence: 99%

Plasma and trap-based techniques for science with positrons

Danielson¹,

Dubin²,

Greaves³

et al. 2015

Rev. Mod. Phys.

226

222

View full text Add to dashboard Cite

show abstract

“…(24), we can get the following nonlinear dispersion relation [31,49] for the amplitude modulation of the IAWs modes:…”

Section: Nonlinear Dispersion Relationmentioning

confidence: 99%

“…Since the effects of parameters β, δ and γ on critical wave number threshold k c have been discussed in a electron-positron-ion plasma in Ref. [31], we just investigate the effects of the nonextensive index q, dust concentration α, wave number k and cold electron to positive ion density ratio µ on the MI and rogue waves in this paper.…”

Section: Nonlinear Dispersion Relationmentioning

confidence: 99%

“…For example, when out flows of the electron-positron plasma from pulsars enters an interstellar cold, low-density electron-ion plasma, the two-electron temperature plasma could be formed [30]. R. Sabry et al studied the ion-acoustic envelope solitons in electron-positron-ion plasma with two-electron temperature distributions [31]. Also Mishra et al investigated ion-acoustic double layers in electron-positron-ion plasma with two-electron temperature distributions [32].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinear ion-acoustic structures in a nonextensive electron–positron–ion–dust plasma: Modulational instability and rogue waves

2012

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a b s t r a c tThe nonlinear propagation of planar and nonplanar (cylindrical and spherical) ion-acoustic waves in an unmagnetized electron-positron-ion-dust plasma with two-electron temperature distributions is investigated in the context of the nonextensive statistics. Using the reductive perturbation method, a modified nonlinear Schrödinger equation is derived for the potential wave amplitude. The effects of plasma parameters on the modulational instability of ion-acoustic waves are discussed in detail for planar as well as for cylindrical and spherical geometries. In addition, for the planar case, we analyze how the plasma parameters influence the nonlinear structures of the first-and second-order ionacoustic rogue waves within the modulational instability region. The present results may be helpful in providing a good fit between the theoretical analysis and real applications in future spatial observations and laboratory plasma experiments.

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“…Theoretical studies indicate that the properties of solitary waves in bounded nonplanar geometry are very different from those in unbounded planar geometry (Maxon and Viecelli 1974;Maxon 1978). Very recently, Sabry et al (2009) investigated the nonlinear wave modulation of planar and nonplanar cylindrical and spherical ion-acoustic envelope solitons in a collisionless, unmagnetized electron-positron-ion plasma with two-electron temperature distributions by employing the reductive perturbation method. The authors reported a modulation instability period for the cylindrical and spherical wave modulation which was non-existent in the planar geometry.…”

Section: Introductionmentioning

confidence: 98%

Dissipative cylindrical fast magnetoacoustic waves in planetary magnetospheres

Masood

Rizvi

Jehan

et al. 2011

Astrophys Space Sci

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Nonlinear cylindrical fast magnetoacoustic waves are investigated in a dissipative magnetoplasma comprising of electrons, positrons, and ions. In this regard, cylindrical Kadomtsev-Petviashvili-Burgers (CKPB) equation is derived using the small amplitude perturbation expansion method. Furthermore, cylindrical Burgers-KadomtsevPetviashvili (Cyl Burgers-KP) for a fast magnetoacoustic wave is derived, for the first time, for spatial scales larger than the electron/positron skin depths, c/ω p(e,p) . Using the tangent hyperbolic method, the solutions of both planar KPB and Burgers-KP equations are obtained and then subsequently used as an initial profile to solve their respective counterparts in the cylindrical geometry. The effect of positron concentration, kinematic viscosity, and plasma β are explored both for the KPB and the Burgers-KP shock waves and the differences between the two are highlighted. The temporal evolution of the cylindrical fast magnetoacoustic wave is also numerically investigated. The present study may be beneficial to study the propagation character-W. Masood · H. Rizvi ( ) · M. Siddiq istics of nonlinear electromagnetic shock waves in planetary magnetospheres.

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Cylindrical and spherical ion-acoustic envelope solitons in multicomponent plasmas with positrons

Cited by 61 publications

References 31 publications

Plasma and trap-based techniques for science with positrons

Plasma and trap-based techniques for science with positrons

Nonlinear ion-acoustic structures in a nonextensive electron–positron–ion–dust plasma: Modulational instability and rogue waves

Dissipative cylindrical fast magnetoacoustic waves in planetary magnetospheres

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