Scattering from conformal interfaces in two dimensions is universal in that the flux of reflected and transmitted energy does not depend on the details of the initial state. In this letter, we present the first gravitational calculation of energy reflection and transmission coefficients for interfaces with thin-brane holographic duals. Our result for the reflection coefficient depends monotonically on the tension of the dual string anchored at the interface, and obeys the lower bound recently derived from the ANEC in conformal field theory. The B(oundary)CFT limit is recovered for infinite ratio of the central charges.

中文翻译：

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二维全息界面的能量反射和传输

二维共形界面的散射是普遍的，因为反射和透射能量的通量不依赖于初始状态的细节。在这封信中，我们介绍了具有薄膜全息对偶的界面的能量反射和透射系数的第一个重力计算。我们的反射系数结果单调取决于锚定在界面上的双弦的张力，并服从最近从共形场理论中的ANEC得出的下界。对于无限比例的中央电荷，将恢复B（边界）CFT限制。