Caustics for spherical waves
Journal Article
·
· Physical Review D
- Case Western Reserve Univ., Cleveland, OH (United States); Imperial College, London (United Kingdom)
- Univ. of Valencia (Spain); Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP)
We study the development of caustics in shift-symmetric scalar field theories by focusing on simple waves with an S O ( p ) -symmetry in an arbitrary number of space dimensions. We show that the pure Galileon, the DBI–Galileon, and the extreme-relativistic Galileon naturally emerge as the unique set of caustic-free theories, highlighting a link between the caustic-free condition for simple S O ( p ) -waves and the existence of either a global Galilean symmetry or a global (extreme-)relativistic Galilean symmetry.
- Research Organization:
- Case Western Reserve Univ., Cleveland, OH (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- SC0009946
- OSTI ID:
- 1423957
- Alternate ID(s):
- OSTI ID: 1346094
- Journal Information:
- Physical Review D, Vol. 95, Issue 6; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 22 works
Citation information provided by
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