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Superstrings; compactification; unbroken supersymmetry; spherical symmetry

The compactification of 10-dimensional supergravity, coupled to super Yang-Mills theory, to curved 4-dimensional spacetimes is investigated. The requirement of unbroken supersymmetry leads to a set of consistency conditions. These are fairly restrictive, but nevertheless permit some nontrivial solutions, including the Milne universe. More general time-dependent metrics are also not ruled out.

Sanjay Kumar¹ S Mahajan^{1 2} A Mukherjee¹ N Panchapakesan¹ R P Saxena¹

1. Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India
2. St. Stephen’s College, University of Delhi, Delhi - 110007, India

Published

May 1990

Manuscript received

21 September 1989

Manuscript revised

1 February 1990