English
Related papers

Related papers: Constant-Tune Cyclotrons

200 papers

Various mechanisms have been put forward for cuprate superconductivity, which fit largely into two camps: spin-fluctuation and electron-phonon (el-ph) mechanisms. However, in spite of a large effort, electron-phonon interactions are not…

Superconductivity · Physics 2011-11-09 J. P. Hague , P. E. Kornilovitch , A. S. Alexandrov , J. H. Samson

In the present paper we give a geometric proof for the existence of cylinders with constant mean curvature $H>H(X)$ in certain simply connected homogeneous three-manifolds $X$ diffeomorphic to $\mathbb{R}^3$, which always admit a Lie group…

Differential Geometry · Mathematics 2018-02-13 Miroslav Vržina

The tautochrone on a cycloid curve is usually considered without drag force. In this work, we investigate the motion of a damped cycloidal pendulum under presence of a drag force. Using the Lagrange formulation, and considering linear…

Classical Physics · Physics 2016-11-07 Paco H. Talero L , César A. Herreño-Fierro , Fernanda Santana

We construct and simulate the dynamics of gauged vortons - circular loops of cosmic string supported by the angular momentum of trapped charge and current and provide additional details on the fully stable vorton that we have previously…

High Energy Physics - Phenomenology · Physics 2022-04-20 R. A. Battye , S. J. Cotterill , J. A. Pearson

We have used terahertz (THz) magneto-optical spectroscopy to investigate the cyclotron resonance in high mobility two-dimensional electron and hole systems. Our experiments reveal long-lived (~20 ps) coherent oscillations in the measured…

We report studies of cyclotron resonance in monolayer graphene. Cyclotron resonance is detected using the photoconductive response of the sample for several different Landau level occupancies. The experiments measure an electron velocity at…

Mesoscale and Nanoscale Physics · Physics 2007-10-12 R. S. Deacon , K-C. Chuang , R. J. Nicholas , K. S. Novoselov , A. K. Geim

When a charged heterotic string is placed in a constant magnetic field B, we show that this system can be solved exactly by using the cyclotron frequency. We then calculate anomalies of the super Virasoro algebra, and give the corresponding…

High Energy Physics - Theory · Physics 2009-02-13 Akira Kokado , Gaku Konisi , Takesi Saito

We have observed cyclotron resonance in a high-mobility GaAs/AlGaAs two-dimensional electron gas by using the techniques of terahertz time-domain spectroscopy combined with magnetic fields. From this, we calculate the real and imaginary…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 X. Wang , D. J. Hilton , L. Ren , D. M. Mittleman , J. Kono , J. L. Reno

We study harmonic and biharmonic maps from gradient Ricci solitons. We derive a number of analytic and geometric conditions under which harmonic maps are constant and which force biharmonic maps to be harmonic. In particular, we show that…

Differential Geometry · Mathematics 2024-07-16 Volker Branding

A classical particle in a constant magnetic field undergoes cyclotron motion on a circular orbit. At the quantum level, the fact that all classical orbits are closed gives rise to degeneracies in the spectrum. It is well-known that the…

Quantum Physics · Physics 2013-06-04 M. H. Al-Hashimi , U. -J. Wiese

This paper describes the beam dynamic simulation with transfer matrix method for cyclotron. Starting from a description on the equation of motion in the cyclotron, lattice functions were determined from transfer matrix method and the…

Accelerator Physics · Physics 2024-01-23 G-H. Kim , H-J. Cho , B-H. Oh , G-R. Hahn , M. Chung , S. Park , S. Shin

An interesting characteristic of magnetospheric chorus is the presence of a frequency gap at $\omega \simeq 0.5\Omega_e$, where $\Omega_e$ is the electron cyclotron angular frequency. Recent chorus observations sometimes show additional…

Space Physics · Physics 2015-04-22 Xiangrong Fu , Zehua Guo , Chuanfei Dong , S. Peter Gary

A classical model of the electron based on Maxwell's equations is presented in which the wave character is described by classical physics. Most properties follow from the description of a classical massless charge circulating with v\,=\,c.…

Classical Physics · Physics 2021-10-07 G. Poelz

The states of a planar oscillator are separated to a vibrational mode, containing a zero-point energy, and a rotational mode without the zero-point energy, but having a conserved angular momentum. On the basis of the analysis of properties…

General Physics · Physics 2012-12-14 Zahid Zakir

The energy spectrum of a one-electron quantum dot doped with a single magnetic ion is studied in the presence of an external magnetic field. The allowed cyclotron resonance (CR) transitions are obtained together with their oscillator…

Strongly Correlated Electrons · Physics 2009-01-30 Nga T. T. Nguyen , F. M. Peeters

In this note, we show how certain properties of Goldbeter's 1995 model for circadian oscillations can be proved mathematically, using techniques from the recently developed theory of monotone systems with inputs and outputs. The theory…

Optimization and Control · Mathematics 2007-05-23 David Angeli , Eduardo D. Sontag

We study the dynamical properties of an electron gas scattered by impenetrable antidots in the presence of a strong magnetic field. We find that the lineshape of the cyclotron resonance is very different from the Lorentzian and is not…

Disordered Systems and Neural Networks · Physics 2009-11-07 D. G. Polyakov , F. Evers , I. V. Gornyi

The phase reduction technique is essential for studying rhythmic phenomena across various scientific fields. It allows the complex dynamics of high-dimensional oscillatory systems to be expressed by a single phase variable. This paper…

Dynamical Systems · Mathematics 2026-01-01 Zeray Hagos Gebrezabher

We define and study equivariant periodic cyclic homology for locally compact groups. This can be viewed as a noncommutative generalization of equivariant de Rham cohomology. Although the construction resembles the Cuntz-Quillen approach to…

K-Theory and Homology · Mathematics 2007-05-23 Christian Voigt

Indus-2 is a synchrotron radiation source which is operational at RRCAT, Indore; India. It is essentially pertinent in any synchrotron radiation facility to store the electron beam without beam loss. During the day to day operation of…

Accelerator Physics · Physics 2013-07-18 Saroj Jena , S. Yadav , R. K. Agrawal , A. D. Ghodke , Pravin Fatnani , T. A. Puntambekar