Search Results - "Gibbons, G.W"

Aspherical photon and anti-photon surfaces by Gibbons, G.W., Warnick, C.M.

“…In this note we identify photon surfaces and anti-photon surfaces in some physically interesting spacetimes, which are not spherically symmetric. All of our…”
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The memory effect for plane gravitational waves by Zhang, P.-M., Duval, C., Gibbons, G.W., Horvathy, P.A.

“…We give an account of the gravitational memory effect in the presence of the exact plane wave solution of Einstein's vacuum equations. This allows an…”
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Eisenhart lifts and symmetries of time-dependent systems by Cariglia, M., Duval, C., Gibbons, G.W., Horváthy, P.A.

“…Certain dissipative systems, such as Caldirola and Kannai’s damped simple harmonic oscillator, may be modelled by time-dependent Lagrangian and hence time…”
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“Kepler Harmonies” and conformal symmetries by Zhang, P.M., Cariglia, M., Elbistan, M., Gibbons, G.W., Horvathy, P.A.

“…Kepler's rescaling becomes, when “Eisenhart-Duval lifted” to 5-dimensional “Bargmann” gravitational wave spacetime, an ordinary spacetime symmetry for motion…”
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Born-Infeld particles and Dirichlet p-branes by Gibbons, G.W.

“…Born-Infeld theory admits finite energy point particle solutions with δ-function sources, Blons. I discuss their role in the theory of Dirichlet p-branes as…”
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Electric-magnetic duality rotations in non-linear electrodynamics by Gibbons, G.W., Rasheed, D.A.

“…We show that there is a function of one variable's worth of Lagrangians for a single Maxwell field coupled to gravity whose equations of motion admit…”
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Ricci-flat metrics, harmonic forms and brane resolutions by CVETIC, M, GIBBONS, G. W, LÜ, H, POPE, C. N

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A G2 unification of the deformed and resolved conifolds by Cvetič, M., Gibbons, G.W., Lü, H., Pope, C.N.

“…We find general first-order equations for G2 metrics of cohomogeneity one with S3×S3 principal orbits. These reduce in two special cases to previously-known…”
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SL(2, [formula omitted]) invariance of non-linear electrodynamics coupled to an axion and a dilaton by Gibbons, G.W., Rasheed, D.A.

“…The most general Lagrangian for non-linear electrodynamics coupled to an axion a and a dilaton φ with SL(2, R ) invariant equations of motion is − 1 2 (∇φ) 2 −…”
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Supersymmetric domain walls from metrics of special holonomy by Gibbons, G.W., Lü, H., Pope, C.N., Stelle, K.S.

“…Supersymmetric domain-wall spacetimes that lift to Ricci-flat solutions of M-theory admit generalized Heisenberg (2-step nilpotent) isometry groups. These…”
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Cosmological evolution of the rolling tachyon by Gibbons, G.W

“…The cosmological effects of the tachyon rolling down to its ground state are discussed by coupling a simple effective field theory for the tachyon field to…”
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Cosmological aspects of the Eisenhart–Duval lift by Cariglia, M., Galajinsky, A., Gibbons, G. W., Horvathy, P. A.

“…A cosmological extension of the Eisenhart–Duval metric is constructed by incorporating a cosmic scale factor and the energy-momentum tensor into the scheme…”
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Conformal and projective symmetries in Newtonian cosmology by Duval, C., Gibbons, G.W., Horváthy, P.A.

“…Definitions of non-relativistic conformal transformations are considered both in the Newton–Cartan and in the Kaluza–Klein-type Eisenhart/Bargmann geometrical…”
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Sturm–Liouville and Carroll: at the heart of the memory effect by Zhang, P.-M., Elbistan, M., Gibbons, G. W., Horvathy, P. A.

“…For a plane gravitational wave whose profile is given, in Brinkmann coordinates, by a 2 × 2 symmetric traceless matrix K ( U ), the matrix Sturm–Liouville…”
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Graphene and the Zermelo optical metric of the BTZ black hole by Cvetič, M., Gibbons, G.W

“…It is well known that the low energy electron excitations of the curved graphene sheet Σ are solutions of the massless Dirac equation on a 2+1 dimensional…”
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Some spacetimes with higher rank Killing–Stäckel tensors by Gibbons, G.W., Houri, T., Kubizňák, D., Warnick, C.M.

“…By applying the lightlike Eisenhart lift to several known examples of low-dimensional integrable systems admitting integrals of motion of higher-order in…”
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The general Kerr–de Sitter metrics in all dimensions by Gibbons, G.W., Lü, H., Page, Don N., Pope, C.N.

“…We give the general Kerr–de Sitter metric in arbitrary space–time dimension D ≥ 4 , with the maximal number [ ( D − 1 ) / 2 ] of independent rotation…”
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The geometry of sound rays in a wind by Gibbons, G.W., Warnick, C.M.

“…We survey the close relationship between sound and light rays and geometry. In the case where the medium is at rest, the geometry is the classical geometry of…”
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The geometry of small causal diamonds by Gibbons, G.W., Solodukhin, S.N.

“…The geometry of causal diamonds or Alexandrov open sets whose initial and final events p and q respectively have a proper-time separation τ small compared with…”
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Black holes and Calogero models by Gibbons, G.W., Townsend, P.K.

“…We argue that the large n limit of the n-particle SU(1,1|2) superconformal Calogero model provides a microscopic description of the extreme Reissner–Nordström…”
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