Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Radiation Reaction"”.
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Radiation reaction in strong fields from an alternative perspective
Current classical theory of radiation reaction has several deficiencies such as "runaway solutions" and violation of causality. The Landau-Lifshitz approximation to the exact equation introduced by Lorentz, Abraham and Dirac is widely used, though questions remain regarding its domain of validity. …
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Experimental Studies of Radiation Reaction and Photon-Photon Collisions in Ultrahigh Intensity Regimes
… limit, one of them being the problem of Radiation Reaction. Ongoing work in this field seeks to establish the exact relationship between the radiation emitted by a charged particle and its own motion. <br/><br/>An additional prospect of the advancement of the field of QED is the …
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Investigating the influence of spin-curvature coupling on extreme mass-ratio inspirals
… waveforms were produced considering radiation reaction and spin-curvature effects. Spin-curvature coupling was predicted to modify the inspiral by introducing oscillations to the small body's worldline. Investigating these effects led to the observation that spin-curvature effects …
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Radiation and reaction in scalar quantum electrodynamics
… work which develops the study of electromagnetic radiation by accelerating charges in the scalar quantum electrodynamic theory. We investigate aspects of this theory in flat spacetime, and in a class of conformally flat and curved spacetimes. In particular, we show that in flat spacetime, the …
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Problems in point charge electrodynamics
… Abraham-von Laue vector, which consists of the radiation reaction term proportional to the 4-acceleration, and the Schott term proportional to the 4-jerk. In the point charge framework the self force can be defined as an integral of the Lienard-Wiechert stress 3-forms over a suitably defined …
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Gravity wave signals from relativistic calculations of binary neutron star coalescence
… tractable, while treating the gravitational radiation reaction, which is the lowest order dissipative term in general relativity, at full strength. We compare the results of calculations with and without 1PN effects for initially synchronized binary systems, for neutron stars with polytropic …
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Gravitational waves as direct probes of binary evolution and astrophysical environments
… gravity and astrophysics, where gravitational radiation in the presence of binary interactions or astrophysical environments may provide new insights into how compact binaries form in our Universe. We first extend the analysis of Peters and Mathews (1963) to binary systems whose masses may vary …
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Gravitational Waves and Inspiraling Compact Binaries in Alternative Theories of Gravity
… We find the contributions to gravitational radiation reaction to 1.5 post-Newtonian and 2.5 post-Newtonian orders, the former corresponding to the effects of dipole gravitational radiation. For binary black holes we show that the motion through 2.5 post-Newtonian order is observationally …
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Theoretical studies of the pulsar magnetosphere
… the motion of single charged particles in the radiation and static fields assumed to exist outside of the inner magnetosphere. By gradually increasing the complexity of the model used. it is shown that trapped orbits exist beyond the light cylinder for the most realistic case. This case …
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Motion of charged particles in pulsar magnetospheres
… by the charges are only mildly relativistic and radiation reaction does not play an important role during the integrations. The negative charge above the polar region is electrostatically bound and there is a force-free region towards which negative charge tends to flow. Some positive charge is …
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Analytic Modelling of Gravitational-Wave Source in General Relativity and Alternative Theories of Gravity
… with the energy flux to compute generic orbit radiation reaction effects in the EOB formalism up to 1PN order. Finally, we use the 3PN conservative dynamics results in the EOB formalism to derive the scattering angle in the scalar-tensor theories which can be used in future as a check against …
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Spinning Black Hole Pairs: Dynamics and Gravitational Waves
… will be an important source of gravitational radiation for both ground-based and future space-based gravitational wave detectors. The study of such systems will offer a unique opportunity to test the dynamical predictions of general relativity when gravity is very strong. To date, most …
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Radiation generation and high-field physics phenomena in ultra-intense laser-solid interactions
… experimental and numerical investigations of the radiation produced via ultra-intense laser-solid interactions. Laser intensities in the range 10exp18−10exp24 Wcm−2 are explored, enabling these interactions to be investigated at current laser facilities (at the lower end of this intensity range), …