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We report modeling results for electron cloud buildup and instability in the International Linear Collider positron damping ring. Updated optics, wiggler magnets, and vacuum chamber designs have recently been developed for the 5 GeV, 3.2-km…

The Landauer "residual resistivity dipole" is a well-known concept in electron transport through a disordered medium. It is formed when a defect/scatterer reflects an impinging electron causing negative charges to build up on one side of…

Mesoscale and Nanoscale Physics · Physics 2022-12-21 Raisa Fabiha , Supriyo Bandyopadhyay

The coherent synchrotron radiation (CSR) of a high brightness electron beam traversing a series of dipoles, such as recirculation or transport arcs, may lead to the microbunching instability. We extend and develop a semi-analytical approach…

Accelerator Physics · Physics 2014-09-01 Cheng-Ying Tsai , David Douglas , Rui Li , Christopher Tennant

Electric dipole radiation can be controlled by coherent optical feedback, as has previously been studied by modulating the photonic environment for point dipoles placed both in optical cavities and near metal mirrors. In experiments…

Mesoscale and Nanoscale Physics · Physics 2020-02-05 Christopher Rogers , Dodd Gray , Nathan Bogdanowicz , Takashi Taniguchi , Kenji Watanabe , Hideo Mabuchi

We develop a theoretical framework that predicts and fully characterizes the diverse experimental observations of the nonlinear, combustion wave propagation in a rotating detonation engine (RDE), including the nucleation and formation of…

Fluid Dynamics · Physics 2021-08-18 James Koch , Mitsuru Kurosaka , Carl Knowlen , J. Nathan Kutz

In the presence of a strong electric field perpendicular to the magnetic field, the electron cross-field (E$\times$B) flow relative to the unmagnetized ions can cause the Electron Cyclotron Drift Instability (ECDI) due to resonances of the…

Plasma Physics · Physics 2022-09-13 Liang Wang , Ammar Hakim , Bhuvana Srinivasan , James Juno

Molecular hydrogen ions are of metrological relevance due to the possibility of precise theoretical evaluation of their spectrum and of external-field-induced shifts. In homonuclear molecular ions the electric dipole $E1$ transitions are…

Atomic Physics · Physics 2021-01-20 P. Danev , D. Bakalov , V. I. Korobov , S. Schiller

The separability and Runge-Lenz-type dynamical symmetry of the internal dynamics of certain two-electron Quantum Dots, found by Simonovi\'c et al. [1], is traced back to that of the perturbed Kepler problem. A large class of axially…

High Energy Physics - Theory · Physics 2015-06-16 P. -M. Zhang , L. -P. Zou , P. A. Horvathy , G. W. Gibbons

This paper summarizes the studies of plasma kinetic instabilities in the electron cyclotron frequency range carried out over the last decade at the Institute of Applied Physics of Russian Academy of Sciences. We investigate the…

Plasma Physics · Physics 2017-03-22 A G Shalashov , M E Viktorov , D A Mansfeld , S V Golubev

We explore the energy dynamics of a two dimensional (2D) trapped Bose-Einstein condensate (BEC) excited by a moving red-detuned laser potential (RDLP). The trap is a combination of a power-law (PL) potential cutoff by a hard-wall box…

Quantum Gases · Physics 2021-07-27 Roger R. Sakhel , Asaad R. Sakhel

We calculate the Doppler broadening of the $W^-$ resonance produced in $\bar{\nu}_e e^-$ collisions of cosmic anti-neutrinos with $E_{\nu}\approx 6.3 \ PeV$ with electrons in atoms up to Iron. Revisiting this issue is prompted by recent…

High Energy Physics - Phenomenology · Physics 2014-07-17 Amit Loewy , Shmuel Nussinov , Sheldon L. Glashow

Synchrotron radiation losses are a significant cause of concern for high-temperature aneutronic fusion reactions such as proton-Boron 11. The fact that radiation losses occur primarily in the high-energy tail, where the radiation itself has…

Plasma Physics · Physics 2024-07-16 Ian E. Ochs , Mikhail E. Mlodik , Nathaniel J. Fisch

We study the transverse energy--energy correlator (TEEC) observable in photon--hadron and photon--jet production in p+p and p+A collisions at small $x$. We derive the relevant expressions in the high-energy limit of the scattering where the…

High Energy Physics - Phenomenology · Physics 2025-04-02 Zhong-Bo Kang , Robert Kao , Meijian Li , Jani Penttala

A novel single-mode resonant structure which enables the rotation of the sample about two orthogonal axes is investigated in view of electron paramagnetic resonance applications. The proposed solution is based on cylindrical nonradiative…

Instrumentation and Detectors · Physics 2009-11-11 G. Annino , M. Cassettari , M. Fittipaldi , M. Martinelli

The rotational motion of an interacting Bose-Einstein condensate confined by a harmonic trap is investigated by solving the hydrodynamic equations of superfluids, with the irrotationality constraint for the velocity field. We point out the…

Condensed Matter · Physics 2009-10-31 A. Recati , F. Zambelli , S. Stringari

We propose a theory for the new effects recently observed by Willett et al [1] in the magnetoresistance of a weakly modulated two dimensional electron gas near filling factor 1/2. Minima in transverse magnetoresistance and maxima in…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Nataliya A. Zimbovskaya , Joseph L. Birman

We demonstrate radiation mechanism exhibited by higher order soliton. In a course of its evolution higher order soliton emits polychromatic radiation resulting in appearance of multipeak frequency comb like spectral band. The shape and…

Optics · Physics 2015-05-12 Rodislav Driben , Alexey Yulin , Anatoly Efimov

The dynamics of charge carriers in lattices of quantum spins is a long standing and fundamental problem. Recently, a new generation of quantum simulation experiments based on atoms in optical lattices has emerged that gives unprecedented…

Strongly Correlated Electrons · Physics 2022-11-09 Jens H. Nyhegn , Kristian K. Nielsen , Georg M. Bruun

Longitudinal oscillations of bunched beams in synchrotrons have been analyzed by accelerator physicists for decades, and a closed theory is well-known [1]. The first modes of oscillation are the coherent dipole mode, quadrupole mode, and…

Accelerator Physics · Physics 2010-11-18 Harald Klingbeil , Dieter Lens , Monika Mehler , Bernhard Zipfel

The electron spin in a semiconductor quantum dot can be coherently controlled by an external electric field, an effect called electric-dipole spin resonance (EDSR). Several mechanisms can give rise to the EDSR effect, among which there is a…

Mesoscale and Nanoscale Physics · Physics 2016-04-15 Rui Li
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