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arXiv 1105.0480hep-thgr-qc
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BTZ黑洞的经典可积性

Classical integrability in the BTZ black hole

Justin R. David, Abhishake Sadhukhan

摘要:

利用BTZ黑洞是AdS_3的商这一事实,我们证明了在BTZ背景下经典弦传播是可积的。我们构造了平坦联络及其产生非局域电荷的单值矩阵。从审查的monodromy矩阵的本征值的一般行为,我们确定的一组积分方程,约束他们。这些方程意味着每个经典解的特征在于复平面上的密度函数。对于经典的解决方案,对应于测地线和缠绕字符串,我们解决的monodromy矩阵的本征值明确,测地线对应于零密度在复平面。我们求解了BMN和类磁振子解的积分方程,得到了它们的色散关系。最后,我们证明了约束单值矩阵特征值的积分方程组可以与扭转SL(2,R)自旋链的Bethe方程在一个圈上的连续极限相一致.

英文摘要:

Using the fact the BTZ black hole is a quotient of AdS_3 we show that classical string propagation in the BTZ background is integrable. We construct the flat connection and its monodromy matrix which generates the non-local charges. From examining the general behaviour of the eigen values of the monodromy matrix we determine the set of integral equations which constrain them. These equations imply that each classical solution is characterized by a density function in the complex plane. For classical solutions which correspond to geodesics and winding strings we solve for the eigen values of the monodromy matrix explicitly and show that geodesics correspond to zero density in the complex plane. We solve the integral equations for BMN and magnon like solutions and obtain their dispersion relation. Finally we show that the set of integral equations which constrain the eigen values of the monodromy matrix can be identified with the continuum limit of the Bethe equations of a twisted SL(2, R) spin chain at one loop.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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