Physics of Quantized Fields and Black Holes

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Quantum effects around and inside black holes will be studied. New toolswill be developed to extend present abilities in calculating vacuumstress-energy tensors, and efforts made to make these tools ofsufficient simplicity and portability so that they may be adopted andused by other research groups. Further connections between semiclassicalgravitational studies of extreme black holes and their role insuperstring theories will be sought. Existing results on extreme,zero-temperature black holes, which play a critical role in superstringtheories, will be extended to include black holes in spacetimes with anonzero cosmological constant, and to rotating black holes. These studies will further illuminate the connection between blackholes and quantum physics, providing new insights into properties oftheories of quantum gravity and helping to establish connections betweensuperstring theories and more "conventional" approaches to thequantization of spacetime.