Results 21 to 30 of about 374,279 (311)

Field-trial of an all-optical PSK regenerator/multicaster in a 40 Gbit/s, 38 channel DWDM transmission experiment [PDF]

open access: yes, 2012
The performance of future ultra-long haul communication systems exploiting phase-encoded signals is likely to be compromised by noise generated during signal transmission.
Joseph Kakande   +19 more
core   +1 more source

Scattering amplitude in the Aharonov-Bohm gauge field [PDF]

open access: yesPhysical Review D, 1996
A general expression for the scattering amplitude of nonrelativistic spinless particles in the Aharonov-Bohm gauge potential is obtained within the time independent formalism. The result is valid also in the backward and forward directions as well as for any choice of the boundary conditions on the wave function at the flux tube position.
, Giacconi, , Maltoni, , Soldati
openaire   +2 more sources

Interaction of excitation and inhibition in processing of pure tone and amplitude-modulated stimuli in the medial superior olive of the mustached bat [PDF]

open access: yes, 1994
1. In mammals with good low-frequency hearing, the medial superior olive (MSO) processes interaural time or phase differences that are important cues for sound localization.
Grothe, Benedikt, B. Grothe
core   +1 more source

Large amplitude motion with a stochastic mean-field approach

open access: yesEPJ Web of Conferences, 2012
In the stochastic mean-field approach, an ensemble of initial conditions is considered to incorporate correlations beyond the mean-field. Then each starting point is propagated separately using the Time-Dependent Hartree-Fock equation of motion.
Yilmaz Bulent   +3 more
doaj   +1 more source

A Field Investigation of the Permeability Dependence of Seismic Amplitudes

open access: yes67th EAGE Conference & Exhibition, 2005
The direct determination of permeability from seismic data is a greatly desired but still unattained goal. There has been significant recent progress due to the work of Pride and Berryman (2003a, 2003b) and Pride et al (2004). They have developed theoretical relationships for seismic attenuation resulting from wave induced fluid flow.
Payne, S   +3 more
openaire   +2 more sources

THRESHOLD AMPLITUDES IN FIELD THEORIES AND INTEGRABLE SYSTEMS [PDF]

open access: yesModern Physics Letters A, 1996
We discuss the threshold tree amplitudes in different nonintegrable quantum field theories in the framework of integrability. The amplitudes are related to some Baker functions defined on the auxiliary spectral curves and the nullification phenomena are shown to allow a topological interpretation.
Gorsky, A., Selivanov, K.
openaire   +2 more sources

Bootstrap and amplitudes: a hike in the landscape of quantum field theory [PDF]

open access: yesReports on Progress in Physics, 2021
Abstract This article is an introduction to two research programs that are currently very active, the conformal bootstrap and scattering amplitudes. Rather than attempting full surveys, the emphasis is on common ideas and methods shared by these two seemingly very different programs.
openaire   +3 more sources

Effect of DC electric field on THz radiation field and efficiency of dark hollow laser beam in plasma

open access: yesAIP Advances, 2021
In the present study, a schematic has been proposed for generating terahertz (THz) radiation by beating of two dark hollow (DH) laser beams in plasma when a DC electric field is applied with a perpendicular direction.
Mitra Amouamouha   +2 more
doaj   +1 more source

Influence of Tsunami Aspect Ratio on Near and Far-Field Tsunami Amplitude

open access: yesGeosciences, 2021
This study presents a numerical investigation of the source aspect ratio (AR) influence on tsunami decay characteristics with an emphasis in near and far-field differences for two initial wave shapes Pure Positive Wave and N-wave.
Natalia K. Sannikova   +2 more
doaj   +1 more source

THE FIELD THEORY LIMIT OF MULTILOOP STRING AMPLITUDES [PDF]

open access: yesGauge Theories, Applied Supersymmetry and Quantum Gravity II, 1997
9 pages, Latex, contribution to the proceedings of the workshop Gauge Theories, Applied Supersymmetry and Quantum gravity, Imperial College, London ...
Di Vecchia, P.   +4 more
openaire   +2 more sources

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