ZhETF, Vol. 143,
No. 2,
p. 257 (February 2013)
(English translation - JETP,
Vol. 116, No. 2,
p. 223,
February 2013
available online at www.springer.com
)
ELECTROMAGNETIC PLANE WAVES WITH NEGATIVE PHASE VELOCITY IN CHARGED BLACK STRINGS
Sharif M.
Received: July 28, 2012
DOI: 10.7868/S0044451013020053
We investigate the propagation regions of electromagnetic plane waves with negative phase velocity in the ergosphere of static charged black strings. For such a propagation, some conditions for negative phase velocity are established that depend on the metric components and the choice of the octant. We conclude that these conditions remain unaffected by the negative values of the cosmological constant.
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