Essay: Deconstructing the Cosmological Constant |
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Authors: | Vishnu Jejjala Robert G Leigh Djordje Minic |
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Institution: | (1) Institute for Particle Physics and Astrophysics, Physics Department, Virginia Tech, Blacksburg, Virginia, 24061, U.S.A.;(2) Theory Division, CERN-, CH-1211 Geneva 23, Switzerland;(3) Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois, 61801, U.S.A. |
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Abstract: | Deconstruction provides a novel way of dealing with the notoriously difficult ultraviolet problems of four-dimensional gravity. This approach also naturally leads to a new perspective on the holographic principle, tying it to the fundamental requirements of unitarity and diffeomorphism invariance, as well as to a new viewpoint on the cosmological constant problem. The numerical smallness of the cosmological constant is implied by a unique combination of holography and supersymmetry, opening a new window into the fundamental physics of the vacuum. |
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Keywords: | Cosmological constant deconstruction holographic principle |
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