论文标题
非BPS黑色麸皮在Calabi-yau三倍的理论中
Non-BPS Black Branes in M-theory over Calabi-Yau Threefolds
论文作者
论文摘要
[删节版本]我们研究在Calabi-yau三倍的M理论压缩中产生的极端解决方案，重点介绍了非BPS吸引子，因为它们与弱重力猜想有关的重要性。在低能/场理论中，一个人获得了最小的n = 2，d = 5超级耦合与阿贝尔矢量多重组合。通过利用有效的黑洞潜在形式主义与拉格朗日乘法器和吸引力机制，并专注于两莫杜里完整的交叉点（CICY）或曲曲面高表皮（Thcy）Calabi-yau三倍，我们研究了吸引人解决方案的非独特性的可能性，以及非B-Bps黑洞和黑色黑洞的稳定性。在所有型号中，我们发现BPS和非BPS极端黑洞吸引子始终是给定的，支持电荷配置。此外，非BPS黑洞总是不稳定的，因此它们会腐烂成构成BPS/抗BPS对。对于涉及极端黑色弦的是什么，我们还确认了两个模型模型中非BPS弦的唯一性。另一方面，我们在大多数两种模型模型中都发现了多个非BPS极端黑色弦吸引子（具有不同的紧张局势），并确定支持它们的相应磁性构型。这表明在具有不同局部最小体积值的同一个同源性类别中，体积最小化代表的存在。此外，我们发现，用于单个溶液和多个溶液的非BPS黑色弦都稳定，因此享受其组成型BPS/抗BPS对的重组。
[abridged version] We study extremal solutions arising in M-theory compactifications on Calabi-Yau threefolds, focussing on non-BPS attractors for their importance in relation to the Weak Gravity Conjecture. In the low-energy/field theory limit one obtains minimal N=2, D=5 supergravity coupled to Abelian vector multiplets. By making use of the effective black hole potential formalism with Lagrange multipliers and of the Attractor Mechanism, and focussing on two-moduli complete intersection (CICY) or toric hypersurface (THCY) Calabi-Yau threefolds, we investigate the possible non-uniqueness of the attractor solutions, as well as the stability of non-BPS black holes and black strings. In all models taken into consideration, we find that both BPS and non-BPS extremal black hole attractors are always unique for a given, supporting electric charge configuration; moreover, non-BPS black holes are always unstable, and thus they decay into constituent BPS/anti-BPS pairs. For what concerns extremal black strings, we confirm uniqueness also for non-BPS strings in two-moduli CICY models. On the other hand, we discover multiple non-BPS extremal black string attractors (with different tensions) in most of the two-moduli THCY models, and we determine the corresponding magnetic configurations supporting them; this indicates the existence of volume-minimizing representatives in the same homology class having different values of their local minimal volume. Moreover, we find that non-BPS black strings, both for single and multiple solutions, are stable and thus enjoy recombination of their constituent BPS/anti-BPS pairs.
