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A method of slowing, accelerating, cooling, and bunching molecules and neutral atoms using time-varying electric field gradients is demonstrated with cesium atoms in a fountain. The effects are measured and found to be in agreement with…

Atomic Physics · Physics 2009-10-31 Jason A. Maddi , Timothy P. Dinneen , Harvey Gould

Nanomechanical resonators are used with great success to couple mechanical motion to other degrees of freedom, such as photons, spins, and electrons. Mechanical vibrations can be efficiently cooled and amplified using photons, but not with…

Mesoscale and Nanoscale Physics · Physics 2020-08-24 C. Urgell , W. Yang , S. L. de Bonis , C. Samanta , M. J. Esplandiu , Q. Dong , Y. Jin , A. Bachtold

The Van Allen radiation belts contain relativistic electrons trapped by Earth's magnetic field, posing serious risks to spacecraft. Chorus waves are known to accelerate these electrons via resonant interactions, but these interactions are…

Space Physics · Physics 2025-07-28 Xin Tao , Zeyu An , Fulvio Zonca , Liu Chen , Jacob Bortnik

Electronic current flowing in a molecular electronic junction dissipates significant amounts of energy to vibrational degrees of freedom, straining and rupturing chemical bonds and often quickly destroying the integrity of the molecular…

Mesoscale and Nanoscale Physics · Physics 2020-09-25 Riley J. Preston , Thomas D. Honeychurch , Daniel S. Kosov

We investigate the accuracy and efficiency of the semiclassical Frozen Gaussian method in describing electron dynamics in real time. Model systems of two soft-Coulomb-interacting electrons are used to study correlated dynamics under…

Chemical Physics · Physics 2015-05-30 Peter Elliott , Neepa T. Maitra

We estimate the role of noise in the formation of entanglement and in the appearance of single- and two-electron interference in systems of coupled one-dimensional channels semiconductors. Two cases are considered: a single-particle…

Mesoscale and Nanoscale Physics · Physics 2012-12-19 Fabrizio Buscemi , Paolo Bordone , Andrea Bertoni

A novel type of particle "cooling", called Ionization Cooling, is applicable to slow (v of the order of 0.1c) ions stored in a small ring. The many traversals through a thin foil enhance the nuclear reaction probability, in a steady…

High Energy Physics - Phenomenology · Physics 2011-05-18 C. Rubbia , A. Ferrari , Y. Kadi , V. Vlachoudis

We analyze Cooper pairing instabilities in strongly driven electron-phonon systems. The light-induced non-equilibrium state of phonons results in a simultaneous increase of the superconducting coupling constant and the electron scattering.…

Superconductivity · Physics 2016-12-16 Michael Knap , Mehrtash Babadi , Gil Refael , Ivar Martin , Eugene Demler

We study a method to cool down the vibration mode of a micro-mechanical beam using a capacitively-coupled superconducting transmission line. The Coulomb force between the transmission line and the beam is determined by the driving microwave…

Mesoscale and Nanoscale Physics · Physics 2011-11-10 Fei Xue , Y. D. Wang , Yu-xi Liu , Franco Nori

We investigate the synchrotron self-Compton process in a planar shell taking the shock structure into account. We find that the energy density of the seed photons could deviate from the one-zone estimate by order of unity depending on the…

Astrophysics · Physics 2009-11-07 Kunihito Ioka

One of the most effective methods for cooling micro and nano devices to ultra low temperatures is the sideband method. Currently, this approach is being studied experimentally and theoretically. Theoretical results that relate to this…

Optics · Physics 2019-04-03 Dmitry N Makarov

The steady-state cooling of a nanomechanical resonator interacting with three coupled quantum dots is studied. General conditions for the cooling to the ground state with single and two-electron dark states are obtained. The results show…

Quantum Physics · Physics 2015-06-04 Jia-pei Zhu , Gao-xiang Li , Zbigniew Ficek

We analyze a coherent injection of single electrons on top of the Fermi sea in two situations, at finite-temperature and in presence of pure dephasing. Both finite-temperature and pure dephasing change the property of the injected quantum…

Mesoscale and Nanoscale Physics · Physics 2015-10-27 Michael Moskalets , Géraldine Haack

Due to the Coulomb blockade effect, electrons rarely bunch during transport, a phenomenon observed only in a few specially engineered mesoscopic configurations. In this work, we introduce an atomically resolved shot-noise study to…

Strongly Correlated Electrons · Physics 2025-11-18 A. Maiti , M. Amato , V. S. Stolyarov , H. Aubin , J. Estève , F. Pistolesi , M. Aprili , F. Massee

We present a comprehensive investigation of nonequilibrium effects and self heating in single electron transfer devices based primarily on the Coulomb blockade effect. During an electron trapping process, a hot electron may be deposited in…

Condensed Matter · Physics 2008-02-03 Chiu Liu , Qian Niu

An accelerator beam can generate low energy electrons in the beam-pipe, generally called electron cloud, that can produce instabilities in a positively charged beam. One method of measuring the electron cloud density is by coupling…

The relationship among the entanglement creation within coherently pumped and closely spaced two-level emitters longitudinally coupled with a single-mode boson field, and the subsequent quantum cooling of the boson mode is investigated.…

Quantum Physics · Physics 2020-04-22 Elena Cecoi , Viorel Ciornea , Aurelian Isar , Mihai A. Macovei

In work is considered average transverse dynamics of an electron beam in the autoresonant laser. It is shown, that in approach of the given external electromagnetic wave (small gain free electron laser) transverse emittance of a beam of the…

Accelerator Physics · Physics 2009-11-07 R. V. Tumanian

Various seeding configurations have being proposed for frequency up-conversion of the electron beam density distribution, in which the energy spread, may however hinder the harmonic generation efficiency. In this Letter, a method for…

Accelerator Physics · Physics 2014-01-03 Haixiao Deng

In this article we present an application of a method of control of Hamiltonian systems to the chaotic velocity diffusion of a cold electron beam interacting with electrostatic waves. We numerically show the efficiency and robustness of the…

Chaotic Dynamics · Physics 2007-05-23 Guido Ciraolo , Cristel Chandre , Ricardo Lima , Marco Pettini , Michel Vittot