Semiclassical energy of closed Nambu-Goto strings

被引：2

作者：

Kozon, Marek ^{[1
,2
,3
]}

Zahn, Jochen ^{[2
]}

机构：

[1] Charles Univ Prague, Fac Math & Phys, Inst Theoret Phys, V Holesovickach 2, CR-18000 Prague 8, Czech Republic

[2] Univ Leipzig, Inst Theoret Phys, Bruderstr 16, D-04103 Leipzig, Germany

[3] Univ Twente, MESA Inst Nanotechnol, Math Computat Sci MACS & Complex Photon Syst COPS, Enschede, Netherlands

来源：

PHYSICAL REVIEW D | 2019年 / 100卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.100.106005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute semiclassical corrections to the energy of rotating closed Nambu-Goto strings. We confirm the results obtained by means of the Polchinski-Strominger action. We also show that in this semiclassical approximation, the spectrum of physical excitations contains modes that are unphysical nonperturbatively, i.e., to which no physical excitations of the covariantly quantized Nambu-Goto string correspond.

引用

页数：14

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