Localized states in global AdS

Abstract

We construct both local states and scattering states with finite energy in global AdS by inserting properly regularized operators in the CFT of arbitrary conformal dimension $(\Delta )$ at an instant of time. We give the state fixed angular momentum $(\ell )$ by integrating the result over a sphere with appropriate spherical harmonics. The energy of the states and their angular resolution is computed with CFT operator methods and is independent of having an AdS interpretation. In the semiclassical limit of large conformal dimension operators, these correspond to single particles localized within subAdS scales with width $1/\sqrt{\Delta }$ in AdS units, whose subsequent evolution is controlled by bulk geodesics. Our construction allows us to place a particle in any desired geodesic. For radial geodesics, we show that the amplitude to produce the desired state can be thought of as a regularized tunneling amplitude from the boundary to the radial turning point of the radial geodesic, while for other geodesics we argue that the insertion is at the outermost radial turning point of the corresponding geodesic.

11 pages, uses revtex. v2: added reference

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• Aspects of Holography in Conical $Ad{S}_3$
• Krylov operator complexity in holographic CFTs: Smeared boundary reconstruction and the dual proper radial momentum
• Creating stars orbiting in AdS
• Spinning Particle Geometries in AdS${}_3$/CFT${}_2$
• Operator product expansions and recoil
• Position and momentum operators for a moving particle in bulk