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arXiv 0907.1331hep-th
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全息模型中(2+1)维k弦的张力和Luscher项

Tensions and Luscher Terms for (2+1)-dimensional k-strings from Holographic Models

Christopher A. Doran, Leopoldo A. Pando Zayas, Vincent G. J. Rodgers, Kory Stiffler

摘要:

k-夸克和k-反夸克的束缚态的能量的首项与它的间隔L成正比。这些k弦组态有一个与它们的量子涨落相关的卢舍尔项,它通常是能量的1/L修正。我们回顾了在格点规范理论,哈密顿方法和规范/引力对应的背景下的紧张局势和Luscher条款的地位。此外,我们探讨如何不同的表示的k弦表现自己的规范/引力对偶。利用规范/引力对应计算了(2+1)维强耦合SU(N)规范理论的Luscher项。也就是说,我们计算一个循环的修正嵌入在Cvetic,长臂猿,陆,教皇超重力背景的探测D4-膜。我们研究玻色子和费米子扇区的量子涨落。

英文摘要:

The leading term for the energy of a bound state of k-quarks and k-antiquarks is proportional to its separation L. These k-string configurations have a Luscher term associated with their quantum fluctuations which is typically a 1/L correction to the energy. We review the status of tensions and Luscher terms in the context of lattice gauge theory, Hamiltonian methods, and gauge/gravity correspondence. Furthermore we explore how different representations of the k-string manifest themselves in the gauge/gravity duality. We calculate the Luscher term for a strongly coupled SU(N) gauge theory in (2+1) dimensions using the gauge/gravity correspondence. Namely, we compute one-loop corrections to a probe D4-brane embedded in the Cvetic, Gibbons, Lu, and Pope supergravity background. We investigate quantum fluctuations of both the bosonic and the fermionic sectors.

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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