Projecting Massive Scalar Fields to Null Infinity

Details Projecting Massive Scalar Fields to Null Infinity Projecting Massive Scalar Fields to Null Infinity

2007-05-02

arxiv.org/abs/0705.0284v1

Ann. Henri Poincare 9 (2008), 35-63

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

26 pages

Scientific paper

10.1007/s00023-007-0349-1

It is known that, in an asymptotically flat spacetime, null infinity cannot act as an initial-value surface for massive real scalar fields. Exploiting tools proper of harmonic analysis on hyperboloids and global norm estimates for the wave operator, we show that it is possible to circumvent such obstruction at least in Minkowski spacetime. Hence we project norm-finite solutions of the Klein-Gordon equation of motion in data on null infinity and, eventually, we interpret them in terms of boundary free field theory.

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