Reply to 'comment on 'Towards gravitationally assisted negative refraction of light by vacuum"

Akhlesh Lakhtakia, Tom G. Mackay

Research output: Contribution to journalArticle

5 Scopus citations


Negative T00 is indeed a characteristic of any plane wave whose phase velocity vector casts a negative projection on its time-averaged Poynting vector, but that quantity does not appear to be necessarily meaningful in the context of energy densities of electromagnetic signals which are necessarily of finite spatiotemporal extent. The astrophysical literature contains several negative-energy scenarios.

Original languageEnglish (US)
Pages (from-to)2545-2546
Number of pages2
JournalJournal of Physics A: Mathematical and General
Issue number11
StatePublished - Mar 18 2005


All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Physics and Astronomy(all)

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