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Phys. Rev. D 59, 106004 (1999) [14 pages]

Vacuum energy cancellation in a nonsupersymmetric string

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Shamit Kachru
Department of Physics, University of California at Berkeley, Berkeley, California 94720
Ernest Orlando Lawrence Berkeley National Laboratory, Mail Stop 50A-5101, Berkeley, California 94720

Jason Kumar
Department of Physics, Stanford University, Stanford, California 94305

Eva Silverstein
Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309

Received 22 December 1998; published 21 April 1999

We present a nonsupersymmetric orbifold of type II string theory and show that it has a vanishing cosmological constant at the one and two loop levels. We argue heuristically that the cancellation may persist at higher loops.


©1999 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.59.106004
DOI: 10.1103/PhysRevD.59.106004
PACS: 11.25.Mj

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