arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.3049hep-th
收藏

弦纠缠与D膜纯态

String Entanglement and D-branes as Pure States

Marcelo Botta Cantcheff

摘要:

为了研究D-膜的微观结构和统计特性,我们研究了闭弦自由度的纠缠。通过考虑宏观纯态(MPS)的极限,每当纠缠熵为零(以这样一种方式,状态的宏观属性被保存),我们表明,边界状态可以恢复在此限制,此外,通过封闭的字符串(微扰)自由度的描述崩溃。我们还展示了如何膜和闭弦的热性质可以描述这个模型,它需要考虑耗散效应。最后强调MPS分析在有限温度下更一般的系统的扩展。

英文摘要:

We study the entanglement of closed strings degrees of freedom in order to investigate the microscopic structure and statistics of objects as D-branes. By considering the macroscopic pure state (MPS) limit, whenever the entanglement entropy goes to zero (in such a way that the macroscopic properties of the state are preserved), we show that boundary states may be recovered in this limit and, furthermore, the description through closed string (perturbative) degrees of freedom collapses. We also show how the thermal properties of branes and closed strings could be described by this model, and it requires that dissipative effects be taken into account. Extensions of the MPS analysis to more general systems at finite temperature are finally emphasized.

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。

↑