This is an old revision of this page, as edited by David Biddulph (talk | contribs) at 13:28, 8 November 2010 (Undid revision 395535277 by 209.204.118.254 (talk)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 13:28, 8 November 2010 by David Biddulph (talk | contribs) (Undid revision 395535277 by 209.204.118.254 (talk))(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff) | This article is an orphan, as no other articles link to it. Please introduce links to this page from related articles; try the Find link tool for suggestions. (April 2010) |
 | This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "X-wave" – news · newspapers · books · scholar · JSTOR (July 2007) (Learn how and when to remove this message) |
In physics, X-waves are localized solutions of the wave equation that travel at a constant velocity along a given direction.
X-waves can be sound, electromagnetic, or gravitational waves. They are built as a non-monochromatic superposition of Bessel beams.
X-waves carry infinite energy and travel superluminally (for electromagnetic waves). Finite energy realizations have been observed in various frameworks.
In optics, X-waves solutions have been also reported within a quantum mechanical formulation by A.Ciattoni and C.Conti in arxiv.org/abs/0704.0442v1.
See also
References
- J. Lu and J. F. Greenleaf, Nondiffracting X waves: exact solutions to free-space scalar wave equation and their infinite realizations, IEEE Trans. Ultrasonic Ferroelectric Frequency. Control 39, 19–31 (1992)
- Erasmo Recami and Michel Zamboni-Rached and Hugo E. Hernandez-Figueroa, Localized Waves: A scientific and historical introduction arxiv.org/abs/0708.1655
- Various authors in the book Localized Waves edited by Erasmo Recami and Michel Zamboni-Rached and Hugo E. Hernandez-Figueroa
External links
- The Virtual Institute for Nonlinear Optics (VINO), a research collaboration devoted to the investigation of X-waves and conical waves in general
- Nolinear X-waves page at the nlo.phys.uniroma1.it website.
 | This physics-related article is a stub. You can help Misplaced Pages by expanding it. |