scholarly journals Динамика фотоиндуцированного вращения сферической частицы в постоянном электрическом поле

2019 ◽  
Vol 89 (1) ◽  
pp. 5
Author(s):  
А.И. Грачев
Keyword(s):  
Dipole Moment ◽  
Electric Field ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Dipole Moments ◽  
Constant Electric Field ◽  
Rotation Effect ◽  
General Terms ◽  
Nonspherical Shape ◽  
Rotation Dynamics

AbstractThe rotation of a spherical particle in a constant electric field (an effect found earlier) has been analyzed. The particle is illuminated to induce the electric dipole moment of the sphere. The dynamics of the rotation effect has been considered in general terms to refine conditions for adiabatic rotation. The features of the particle’s nonadiabatic rotation have been demonstrated with a sphere placed in a medium with an infinitesimal viscosity. It has been shown that the nonadiabatic rotation dynamics to a great extent depends on a relationship between the electrical and photoinduced dipole moments of the sphere. The rotation dynamics of a particle with a slightly nonspherical shape has been briefly analyzed.

Electronic structure of POPC phospholipids under constant electric field

2017 ◽  
Vol 31 (22) ◽  
pp. 1750157
Author(s):  
Jaciéli Evangelho de Figueiredo ◽  
Leandro Barros da Silva
Keyword(s):  
Electronic Structure ◽  
Dipole Moment ◽  
External Field ◽  
Electric Field ◽  
Electric Fields ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Constant Electric Field ◽  
Ab Initio Study ◽  
Electronic And Structural Properties

We report in the present paper an ab initio study on the electronic and structural properties of phospholipidic membranes under the influence of electric fields. We show that the external field alters the charge distribution of the molecule leading to a modification in the electric dipole moment. The torque on the phospholipid may then cause a transmembranar stress, which by its turn, weakens the membrane allowing to the formation of a pore.

scholarly journals DERIVATION OF GENERALIZED THOMAS–BARGMANN–MICHEL–TELEGDI EQUATION FOR A PARTICLE WITH ELECTRIC DIPOLE MOMENT

2013 ◽  
Vol 28 (29) ◽  
pp. 1350147 ◽  
Author(s):  
TAKESHI FUKUYAMA ◽  
ALEXANDER J. SILENKO
Keyword(s):  
Dipole Moment ◽  
Electromagnetic Fields ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Dipole Moments ◽  
Classical Equation ◽  
Spin Motion ◽  
Electric Dipole Moments ◽  
Momentum Direction ◽  
Telegdi Equation

General classical equation of spin motion is explicitly derived for a particle with magnetic and electric dipole moments in electromagnetic fields. Equation describing the spin motion relative to the momentum direction in storage rings is also obtained.

scholarly journals Передача крутящего момента проводящей частице с использованием силы Лоренца

2022 ◽  
Vol 56 (1) ◽  
pp. 76
Author(s):  
А.И. Грачев
Keyword(s):  
Dipole Moment ◽  
Electric Field ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Field Application ◽  
Conductive Particle ◽  
Particle Rotation ◽  
Dc Electric Field ◽  
First Time ◽  
Cylindrical Particles

In the paper the concept of conductive particle rotation in DC electric field with including the Lorentz force providing generation of electric dipole moment of the particle is for the first time discussed. Some models of the torque transfer to spherical and cylindrical particles based on of the Hall effect at usual geometry and with additional electric field application and also in the case of implementation of the photoelectromagnetic effect are presented.

Elektrisches Dipolmoment von TlBr und TlJ

1971 ◽  
Vol 26 (11) ◽  
pp. 1809-1812 ◽  
Author(s):  
E. Tiemann
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Vibrational State ◽  
Stark Effect ◽  
Dipole Moments ◽  
Electric Dipole Moments ◽  
Ground Vibrational State ◽  
Rotational Transitions

Stark-effect measurements on pure rotational transitions of TlBr and Til are described. The derived electric dipole moments of the most abundant isotopic molecules on the ground vibrational state are:205TL79Br : | μ0| = (4.493 ± 0.050) D , 205Tl127 I | μ 0| =(4.607 ± 0.070) D .The electric dipole moment of 205Tl19F | μ 0|=4.2282 (8) D was used as standard.

A Sensitive Search for a Muon Electric Dipole Moment

2001 ◽  
Vol 16 (supp01b) ◽  
pp. 690-693 ◽  
Author(s):  
Y. K. SEMERTZIDIS ◽  
H. BROWN ◽  
G. T. DANBY ◽  
J. W. JACKSON ◽  
R. LARSEN ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Electric Field ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Radial Electric Field ◽  
Magnetic Storage ◽  
Novel Technique ◽  
Permanent Electric Dipole Moment ◽  
Relativistic Particles ◽  
Better Than

We are proposing a new method to carry out a dedicated search for a permanent electric dipole moment (EDM) of the muon with a sensitivity at a level of 10-24e · cm in both statistics and systematics. This will make the sensitivity of the EDM experiment to non-standard physics better than the sensitivity of the present muon g-2 experiment, assuming the CP violating phase of the probed physics is of order one. The experimental design exploits the strong motional electric field sensed by relativistic particles in a magnetic storage ring.1,2 As a key feature, a novel technique has been invented in which the g-2 precession is compensated with a radial electric field.

Probing new CP-odd thresholds with electric dipole moments

2007 ◽  
Vol 85 (6) ◽  
pp. 597-606
Author(s):  
A Ritz
Keyword(s):  
Dipole Moment ◽  
Cp Violation ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Dipole Moments ◽  
New Physics ◽  
Electric Dipole Moments ◽  
Higher Dimensional ◽  
The Status ◽  
Generic Class

We dicuss the utility of precision probes for flavour-diagonal CP-violation, namely, searches for electric dipole moments of nucleons, atoms, and molecules, in looking for new physics thresholds that manifest themselves primarily through higher dimensional operators. After reviewing the status of the electric dipole moment (EDM) constraints, we consider first the sensitivity to a generic class of dimension-five operators generated at a supersymmetric threshold, through their contribution to CP- and flavour-violating observables. Such thresholds can be probed by EDMs up to a scale of order 108 GeV depending on the flavour structure. We then turn to consider the possibility that electroweak baryogenesis is made feasible by the introduction of dimension-six operators at a TeV-scale threshold. The EDM costraints on dimension-six couplings of the Higgs to the fermions currently still allow a reasonable window in parameter space for these models, but the next generation of experiments should provide a conclusive test. PACS Nos.: 11.30.Er, 12.60.Fr, 12.60.Jv

scholarly journals Эффект фотовращения Квинке

2018 ◽  
Vol 44 (16) ◽  
pp. 27
Author(s):  
А.И. Грачев
Keyword(s):  
Dipole Moment ◽  
Electric Field ◽  
Spherical Particle ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Continuous Irradiation ◽  
Stationary Electric Field ◽  
Quincke Rotation

AbstractImplementation of the well-known phenomenon of Quincke rotation is proposed, which may be called the “photoinduced Quincke rotation (PIQR) effect.” The PIQR effect is based on the previously discovered phenomenon of rotation of a spherical particle in a stationary electric field under continuous irradiation inducing an electric dipole moment in the particle.

Electric Dipole Moment Investigation of Buttressing in Alkyl Duryl Ketones

1975 ◽  
Vol 53 (13) ◽  
pp. 2024-2030 ◽  
Author(s):  
A. George Pinkus ◽  
Herman C. Custard Jr.
Keyword(s):  
Dipole Moment ◽  
Carbonyl Group ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Alkyl Group ◽  
Dipole Moments ◽  
Electron Delocalization ◽  
Methyl Groups ◽  
Method Of Calculation

Dipole moments (D) determined for the following alkyl duryl ketones in benzene at 30° were: Me, 2.83; Et, 2.80; i-Pr, 2.74; t-Bu, 2.65. The decrease in the series is explained by increasing rotational restriction about the carbonyl group due to an increasing interference by the ortho methyl groups with the alkyl group. This results in a greater twist from coplanarity between the ring and carbonyl and less π-electron delocalization and consequently a lower dipole moment as the size of the alkyl increases. The increase observed for the duryl ketone moments over those of corresponding mesityl ketones is tentatively explained as due to a higher duryl group moment relative to the mesityl moment. The interplanar angles (angles of twist) for the duryl ketones calculated with the Braude–Sondheimer equation were slightly larger than those calculated for the mesityl ketones, the magnitude depending on the method of calculation. It is tentatively concluded that evidence from dipole moment data indicates that a small buttressing effect exists in the duryl ketone system.

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