Randall - Sundrum Gauge in the Brane World
نویسنده
چکیده
We discuss the Randall-Sundrum (RS) gauge in the brane-world. We begin with the de Donder gauge (transverse-tracefree) in five dimensions for comparison. One finds that h55 = 0 and h5μ has a tachyonic mass. Hence we have to set h5μ = 0. This leads to the RS gauge. It appears that the RS gauge is so restrictive for the five massless states, whereas it is unique for describing the massive states. Furthermore, one can establish the stability of the RS solution with the RS gauge only. ∗E-mail address: [email protected] †E-mail address: [email protected] ‡E-mail address: [email protected] 1
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