CAN QUANTUM-CORRECTED BTZ BLACK-HOLE ANTI-EVAPORATE

Kaluza-Klein reduction of 3-D gravity with minimal scalars leads to 2- D dilaton-Maxwell gravity with dilaton coupled scalars. Evaluating the one-loop effective action for dilaton coupled scalars in large-N and s-wave approximation, we apply it to study quantum evolution of BTZ bl ack hole. It is shown that quantum-corrected BTZ BK may evaporate or e lse anti-evaporate which is similar to 4-D Nariai BH as is observed by Bousso and Hawking. Instable higher modes in the spectrum also indica te the possibility of proliferation of BTZ BH.