Stability of Randall-Sundrum brane-world and tachyonic scalar
classification
✦ hep-th
keywords
brane-worldscalarembeddedrandall-sundrumspacetachyonicaddressallowed
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We address the behaviour of the scalar field with negative mass squared in the five dimensional AdS space where the Randall-Sundrum brane-world is embedded. We point out that the tachyonic scalar allowed in the bulk space destabilizes the embedded brane-world where the cosmological constant is zero. The resolution of this instability is discussed from the viewpoint of AdS/CFT correspondence.
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