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Theoretical approaches to low-frequency magnetized turbulence in collisionless and weakly collisional astrophysical plasmas are reviewed. The proper starting point for an analytical description of these plasmas is kinetic theory, not fluid…

Astrophysics · Physics 2009-11-11 A. A. Schekochihin , S. C. Cowley , W. Dorland

We report the observation of entanglement between a single trapped atom and a single photon at a wavelength suitable for low-loss communication over large distances, thereby achieving a crucial step towards long range quantum networks. To…

A four dimensional systematic mathematical approach for investigating propagation and coupling of wave modes in a slowly varying (in all space directions and time) anisotropic, absorbing plasma is represented. The formalism is especially…

plasm-ph · Physics 2008-02-03 Bijan Sheikholeslami Sabzevari

Wakefield excitation by structured electron bunches in hollow gaps between plasma wedges is studied using three-dimensional particle-in-cell simulations. The main part of the electron bunch has a triangular current distribution in the…

Plasma Physics · Physics 2024-03-15 Alexander Pukhov , Lars Reichwein

Wakefield particle acceleration in hollow plasma channels is under extensive study nowadays. Here we consider an externally magnetized plasma layer (external magnetic field of arbitrary magnitude is along the structure axis) and investigate…

Plasma Physics · Physics 2021-04-29 Sergey N. Galyamin

The effect of plasma oscillations on acoustic wave amplification by carrier drift in semiconductors is discussed. A continuum theory is developed on the basis of hydrodynamical equations for the conduction electrons, the equations for the…

Materials Science · Physics 2007-05-23 Yuri Kornyushin

We propose and demonstrate a concept that mimics the magnetization of the heavy dust particles in a complex plasma while leaving the properties of the light species practically unaffected. It makes use of the frictional coupling between a…

Plasma Physics · Physics 2012-10-16 H. Kählert , J. Carstensen , M. Bonitz , H. Löwen , F. Greiner , A. Piel

We consider the mechanical motion of a system of six macroscopic pendula which are connected with springs and arranged in a hexagonal geometry. When the springs are pre-tensioned, the coupling between neighbouring pendula along the…

Mesoscale and Nanoscale Physics · Physics 2017-05-25 Grazia Salerno , Alice Berardo , Tomoki Ozawa , Hannah M. Price , Ludovic Taxis , Nicola M. Pugno , Iacopo Carusotto

A new nonlinear electromagnetic wave mode in a plasma is reported. Its existence depends on the interaction of an intense circularly polarized electromagnetic wave with a plasma, where quantum electrodynamical photon--photon scattering is…

Plasma Physics · Physics 2015-06-26 Lennart Stenflo , Gert Brodin , Mattias Marklund , Padma K. Shukla

Relativistic electron beam transport through a high-density, magnetized plasma is studied numerically and theoretically. An electron beam injected into a cold plasma excites Weibel and two-stream instabilities that heat the beam and…

Plasma Physics · Physics 2017-05-24 Toshihiro Taguchi , Thomas M. Antonsen , Kunioki Mima

We propose a theoretical ground for emissive capacitively coupled radio-frequency plasma sheath under low pressure. The rf sheath is assumed to be collisionless, and oscillates with external source. A known sinusoidal voltage instead of…

Plasma Physics · Physics 2020-11-25 Guang-Yu Sun , Han-Wei Li , An-Bang Sun , Yuan Li , Bai-Peng Song , Hai-Bao Mu , Xiao-Ran Li , Guan-Jun Zhang

We calculate the collective charge density excitation dispersion and spectral weight in bilayer semiconductor structures {\it including effects of interlayer tunneling}. The out-of-phase plasmon mode (the ``acoustic'' plasmon) develops a…

Strongly Correlated Electrons · Physics 2009-10-31 S. Das Sarma , E. H. Hwang

The transition between linear and nonlinear regimes of the mode-coupling instability (MCI) operating in a monolayer plasma crystal is studied. The mode coupling is triggered at the centre of the crystal and a melting front is formed, which…

Plasma Physics · Physics 2015-06-18 T. B. Röcker , L. Couëdel , S. K. Zhdanov , V. Nosenko , A. V. Ivlev , H. M. Thomas , G. E. Morfill

The definition of magnetic shuttle is introduced to describe the magnetic space enclosed by two tandem magnetic mirrors with the same field direction and high mirror ratio. Helicon plasma immersed in such a magnetic shuttle which can…

Plasma Physics · Physics 2020-06-11 L. Chang , J. Liu , X. G. Yuan , X. Yang , H. S. Zhou , G. N. Luo , X. J. Zhang , Y. K. Peng , J. Dai , G. R. Hang

This short article highlights the unsolved problems of magnetic reconnection in collisionless plasma. The advanced in-situ plasma measurements and simulations enabled scientists to gain a novel understanding of magnetic reconnection. Still,…

We propose methods to perform intensity interferometry of photons having two different wavelengths. Distinguishable particles typically cannot interfere with each other, but we overcome that obstacle by processing the particles via…

Quantum Physics · Physics 2019-05-01 Jordan Cotler , Frank Wilczek , Victoria Borish

Magnetic reconnection occurs when two plasmas having co-planar but anti-parallel magnetic fields meet. At the contact point, the field is locally annihilated and the magnetic energy can be released into the surrounding plasma. Theory and…

Measurements of temperature and density near supra-arcade current sheets suggest that plasma on unreconnected field lines may experience some degree of "pre-heating" and "pre-densification" prior to their reconnection. Models of patchy…

Solar and Stellar Astrophysics · Physics 2015-06-17 Roger B. Scott , Dana W. Longcope , David E. McKenzie

Ion bombardment has been shown to be capable of enhancing the interlayer exchange coupling in a trilayer system that exhibits giant magnetoresistance. We demonstrate that this phenomenon can be derived from the phase coherence among…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Ching-Hao Chang , Tzay-Ming Hong

Quantum hypothesis testing has been greatly advanced for the binary discrimination of two states, or two channels. In this setting, we already know that quantum entanglement can be used to enhance the discrimination of two bosonic channels.…

Quantum Physics · Physics 2020-07-30 Quntao Zhuang , Stefano Pirandola
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