Vortices in a Strongly Magnetized Electron–Positron–Ion Plasma

Shukła, P. K.; Mamun, A. A.; Stenflo, L.

doi:10.1238/physica.regular.068a00295

Cited by 54 publications

(30 citation statements)

References 17 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.

229

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.

229

222

View full text Add to dashboard Cite

show abstract

“…Basically EA waves are high frequency electrostatic modes in comparison with the ion plasma frequency (Stix 1992; Saha and Chatterjee 2014a) which can propagate not only in unmagnetized plasma El-Taibany and Moslem 2005;Sabry and Omran 2013) but also in magnetized plasma (Shukla et al 2004;Mace and Hellberg 2001;. EA waves are important for their excitation in space and laboratory plasma, and also significant for their potential importance (Sahu 2010a).…”

Section: Introductionmentioning

confidence: 99%

Higher-order nonlinear equations for the electron-acoustic waves in a nonextensive electron-positron-ion plasma

Rafat

Rahman

Mamun

2015

Astrophys Space Sci

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A precise theoretical investigation has been made on electron-acoustic (EA) Gardner solitons (GSs) and double layers (DLs) in a four-component plasma system consisting of nonextensive hot electrons and positrons, inertial cold electrons, and immobile positive ions. The well-known reductive perturbation method has been used to derive the Korteweg-de Vries (K-dV), modified K-dV (mK-dV), and Gardner equations along with their solitary wave as well as double layer solutions. It has been found that depending on the plasma parameters, the K-dV solitons and GSs are either compressive or rarefactive, whereas the mK-dV solitons are only compressive, and Gardner DLs are only rarefactive. The analytical comparison among the K-dV solitons, mK-dV solitons, and GSs are also investigated. It has been identified that the basic properties of such EA solitons and EA DLs are significantly modified due to the effects of nonextensivity and other plasma parameters related to plasma particle number densities and to temperature of different plasma species. The results of our present investigation can be helpful for understanding the nonlinear electrostatic structures associated with EA waves in various interstellar space plasma environments and cosmological scenarios (viz. quark-gluon plasma, protoneutron stars, stellar polytropes, hadronic matter, dark-matter halos, etc.)Keywords Electron-acoustic waves · Nonextensive electrons and positrons · Electron-positron-ion plasmas ·

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“…Parks (1995) has studied solitary ion acoustic waves in a plasma with negative ions and nonisothermal electrons. The presence of trapped electrons has been reported in Thompson (1971), Tran and Means (1995). Wong et al (1973) have found experimental support for trapped electrons in plasma.…”

Section: Introductionmentioning

confidence: 84%

“…These nonlinear wave structures arise due to the balance nonlinearity and dispersion of the wave. Some authors have studied different types of coherent linear and nonlinear wave structures such as solitons, double layers, and vortices in e-p plasmas (Berezhiani et al 1992;Shukla and Stenflo 1993;Yu et al 1986;Shukla et al 2003;Bharuthram 1992). Nonlinear wave propagation phenomena in e-p-i plasmas have been studied previously (Rizzato 1988;Berezhiani et al 1994;Popel et al 1995).…”

Section: Introductionmentioning

confidence: 99%

Ion acoustic solitary waves in plasma with nonisothermal electron, positron, and ion components

Pakzad

2009

Astrophys Space Sci

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Ion acoustic solitary waves in three-component plasmas with nonisothermal electrons, positrons and ions are studied. The Sagdeev pseudo-potential method has been used in this work. The trapping parameter (β), the ratio of the free electron temperature to the trapped electron temperature, is treated as a variable. We study the effect of β on the speed of solitons.Keywords Ion acoustic waves · Solitons · Sagdeev potential PACS 52.35.Fp · 52.35.Sb · 52.35.Mw

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Vortices in a Strongly Magnetized Electron–Positron–Ion Plasma

Cited by 54 publications

References 17 publications

Plasma and trap-based techniques for science with positrons

Plasma and trap-based techniques for science with positrons

Higher-order nonlinear equations for the electron-acoustic waves in a nonextensive electron-positron-ion plasma

Ion acoustic solitary waves in plasma with nonisothermal electron, positron, and ion components

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