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Related papers: Transverse-Longitudinal Emittance Transfer in Circ…

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The spectrum and polarization produced by particles spiraling in a magnetic field undergo dramatic changes as the emitters transition from nonrelativistic to relativistic energies. However, none of the currently available methods for…

Astrophysics · Physics 2016-08-30 Brandon Wolfe , Fulvio Melia

An experimental program to demonstrate a novel phase space manipulation in which the horizontal and longitudinal emittances of a particle beam are exchanged has been completed at the Fermilab A0 Photoinjector. A new beamline, consisting of…

Accelerator Physics · Physics 2011-06-27 J. Ruan , A. S. Johnson , A. H. Lumpkin , R. Thurman-Keup , H. Edwards , R. P. Fliller , T. Koeth , Y. -E Sun

Effects of the backward scattering with large momentum transfer are examined in two-dimensional electron system with a special emphasis on electrons around ($\pi$,0), (0,$\pi$). The phase diagram is shown in the plane of temperature $T$ and…

Strongly Correlated Electrons · Physics 2009-10-30 Masakazu Murakami , Hidetoshi Fukuyama

The Panofsky-Wenzel theorem connects the transverse deflecting force in an rf structure with the existence of a longitudinal electric field component. In this paper it is shown that a transverse deflecting force is always accompanied by an…

Accelerator Physics · Physics 2019-05-21 Valentin Paramonov , Klaus Floettmann

We present a simple micromanipulation technique to transfer suspended graphene flakes onto any substrate and to assemble them with small localized gates into mechanical resonators. The mechanical motion of the graphene is detected using an…

Mesoscale and Nanoscale Physics · Physics 2012-03-06 Xuefeng Song , Mika Oksanen , Mika A. Sillanpää , H. G. Craighead , J. M. Parpia , Pertti J. Hakonen

We have studied a one-dimensional channel with a wider, straight region irradiated by an external electromagnetic field. In this system the interplay between interference effects and resonance phenomena manifests itself and provides a new…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 S. Blom , L. Y. Gorelik

The single-photon scattering in a rectangular waveguide by a V-type three-level emitter is studied for large range of input-photon energy beyond the single-mode region. By using Lippmann-Schwinger formalism, the necessary and sufficient…

Quantum Physics · Physics 2020-12-30 Ya-Ju Song , Lei Qiao , Chang-Pu Sun

We explore excitation transport within a one-dimensional chain of atoms where the atomic transition dipoles are coupled to the free radiation field. When the atoms are separated by distances smaller or comparable to the wavelength of the…

Quantum Physics · Physics 2019-09-04 Jemma A. Needham , Igor Lesanovsky , Beatriz Olmos

The particle motion equation in the Radio Frequency (RF) quadrupole is derived. The motion equation shows that the general transform matrix of RF quadrupole with length less than or equal to 0.5b*l (b is the relativistic velocity of…

Accelerator Physics · Physics 2017-09-13 Zhihui Li , Zhijun Wang

In this article, we consider a generalized Radon transform that comes up in ultrasound reflection tomography. In our model, the ultrasound emitter and receiver move at a constant distance apart along a circle. We analyze the microlocal…

Analysis of PDEs · Mathematics 2011-10-20 Gaik Ambartsoumian , Venky P. Krishnan , Eric Todd Quinto

In contrast to free space, in waveguides the dispersive and dissipative dipole-dipole interactions among quantum emitters exhibit a periodic behavior over remarkably long distances. We propose a novel setup exploiting this long-range…

Quantum Physics · Physics 2025-05-09 Martin Fasser , Laurin Ostermann , Helmut Ritsch , Christoph Hotter

We show that simple 2 and 3-layer flux-transport dynamos, when forced at the top by a poloidal source term, can produce a widely varying amplitude of toroidal field at the bottom, depending on how close the meridional flow speed of the…

Solar and Stellar Astrophysics · Physics 2015-05-28 Peter A. Gilman , Mausumi Dikpati

A vacuum autoresonance accelerator scheme for electrons, which employs terahertz radiation and currently available magnetic fields, is suggested. Based on numerical simulations, parameter values, which could make the scheme experimentally…

A theory of a new magnetodynamic effect describing the energy exchange between the degrees of freedom of a conducting cylinder moving in a helical magnetic field has been developed. The possibility of effectively converting the…

Plasma Physics · Physics 2025-09-15 M. D. Tokman , V. L. Bratman , E. Magori , N. Balal

Knowledge of the transverse four-dimensional beam rms-parameters is essential for applications that involve lattice elements that couple the two transverse degrees of freedom (planes). Of special interest is the removal of inter-plane…

Accelerator Physics · Physics 2016-08-24 C. Xiao , M. Maier , X. N. Du , P. Gerhard , L. Groening , S. Mickat , H. Vormann

We theoretically study the electronic transport of a nanowire partly irradiated under an external terahertz (THz) electromagnetic field. Although the electrons in the ballistic nanowires only suffer lateral collision with photons the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Guanhui Zhou , Mou Yang

A combined scattering mechanism involving the states of free electron-hole pairs (exciton continuum) and discrete excitons as intermediate states in the multi-phonon Raman scattering leads to (1) a strong increase of the scattering…

Condensed Matter · Physics 2009-10-28 I. G. Lang , A. V. Prokhorov , M. Cardona , V. I. Belitsky , A. Cantarero , S. T. Pavlov

In a Low Energy Beam Transport line (LEBT), the emittance growth due to the beam's own space charge is typically suppressed by way of neutralization from either electrons or ions, which originate from ionization of the background gas. In…

Accelerator Physics · Physics 2017-04-20 L. Prost , J. -P. Carneiro , A. Shemyakin

This is the second of a series of papers devoted to develop a microscopical approach to the dipole emission process and its relation to coherent transport in random media. In this Letter, we deduce a relation between the transverse decay…

Optics · Physics 2009-03-12 M. Donaire

A classical model of radiation reaction for the betatron oscillation of an electron in a plasma wakefield accelerator is presented. The maximum energy of the electron due to the longitudinal radiation reaction is found, and the betatron…

Plasma Physics · Physics 2021-07-20 Ming Zeng , Keita Seto