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6 papers · 2 filters
Quasi-local contribution to the scalar self-force: Geodesic Motion
Adrian C. Ottewill, Barry Wardell
We consider a scalar charge travelling in a curved background spacetime. We calculate the quasi-local contribution to the scalar self-force experienced by such a particle following…
Scattering of Long-Wavelength Gravitational Waves
Sam R. Dolan
We consider the scattering of a low-frequency gravitational wave by a massive compact body in vacuum. We apply partial-wave methods to compute amplitudes for the helicity-conservin…
Inhomogeneous High Frequency Expansion-Free Gravitational Waves
C. Barrabes, P. A. Hogan
We describe a natural inhomogeneous generalization of high frequency plane gravitational waves. The waves are high frequency waves of the Kundt type whose null propagation directio…
Instability of the massive Klein-Gordon field on the Kerr spacetime
Sam R. Dolan
We investigate the instability of the massive scalar field in the vicinity of a rotating black hole. The instability arises from amplification caused by the classical superradiance…
An absolute quantum energy inequality for the Dirac field in curved spacetime
Calvin J. Smith
Quantum Weak Energy Inequalities (QWEIs) are results which limit the extent to which the smeared renormalised energy density of a quantum field can be negative. On globally hyperbo…
Absolute quantum energy inequalities in curved spacetime
Christopher J. Fewster, Calvin J. Smith
Quantum Energy Inequalities (QEIs) are results which limit the extent to which the smeared renormalised energy density of the quantum field can be negative, when averaged along a t…