A N Aliev and Y Nutku 2001 Class. Quantum Grav. 18 891 doi:10.1088/0264-9381/18/5/308
A N Aliev and Y Nutku
Show affiliationsPenrose's identification with warp provides the general framework for constructing the continuous form of impulsive gravitational wave metrics. We present the two-component spinor formalism for the derivation of the full family of impulsive spherical gravitational wave metrics which brings out the power in identification with warp and leads to the simplest derivation of exact solutions. These solutions of the Einstein vacuum field equations are obtained by cutting Minkowski space into two pieces along a null cone and re-identifying them with warp which is given by an arbitrary nonlinear holomorphic transformation. Using two-component spinor techniques we construct a new metric describing an impulsive spherical gravitational wave where the vertex of the null cone lies on a worldline with constant acceleration.
83C60 Spinor and twistor methods; Newman-Penrose formalism
83C25 Approximation procedures, weak fields
83C05 Einstein's equations (general structure, canonical formalism, Cauchy problems)
Issue 5 (7 March 2001)
Received 14 November 2000
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