标题： 自引力球形零尘的一般解 显示英文标题

标题： General Solution for Self-Gravitating Spherical Null Dust

摘要： 我们找到自引力球形零尘的运动方程的通解，作为外向物质能量动量张量的幂级数摄动展开，最低阶项是对于内向物质的Vaidya解。 这是通过将零尘模型表示为二维标量引力理论，并利用纯二维标量引力的一个对称性来固定规范来实现的。 对该解进行量子化将提供一个有效度规，该度规包括比之前研究的蒸发模型更真实的黑洞蒸发模型的反作用。 显示英文摘要

摘要： We find the general solution of equations of motion for self-gravitating spherical null dust as a perturbative series in powers of the outgoing matter energy-momentum tensor, with the lowest order term being the Vaidya solution for the ingoing matter. This is done by representing the null-dust model as a 2d dilaton gravity theory, and by using a symmetry of a pure 2d dilaton gravity to fix the gauge. Quantization of this solution would provide an effective metric which includes the back-reaction for a more realistic black hole evaporation model than the evaporation models studied previously.