标题： 二维引力孤子在弦理论中 显示英文标题

标题： 2-D gravisolitons in string theory

摘要： 几种引力弦背景可以被解释为约化轴子-稀释引力的二维孤立子解。 它们包括黑洞和虫洞解以及具有精确共形场论描述的宇宙学模型。 我们以纳皮-维滕宇宙为例，说明了引力孤立子的使用，该宇宙由此通过孤立子修饰从平空间“产生”。 我们还对引力孤立子在与其他无引力的二维可积系统孤立子解相比的现状做出了一些一般性评论。 （提交至第二届萨哈罗夫国际会议论文集，莫斯科） 显示英文摘要

摘要： Several gravitational string backgrounds can be interpreted as 2-dim soliton solutions of reduced axion-dilaton gravity. They include black-hole and worm-hole solutions as well as cosmological models with an exact conformal field theory description. We illustrate the use of gravisolitons for the particular example of Nappi-Witten universe which is thus "created" from flat space by soliton dressing. We also make some general comments about the status of gravisolitons in comparison to soliton solutions of other 2-dim integrable systems without gravity. (Contribution to the proceedings of the 2nd International Sakharov Conference, Moscow)