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arXiv 1102.0117gr-qchep-th
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修正色散关系和非对易几何导致有限零点能

Modified Dispersion Relations and Noncommutative Geometry lead to a finite Zero Point Energy

Remo Garattini

摘要:

我们计算零点能在球对称背景的帮助下的惠勒-德维特方程。这最后一个被视为一个Sturm-Liouville问题的宇宙学常数被认为是相关的本征值。引力子的贡献,在一个循环提取机智的帮助下,变分方法与高斯试验泛函。与zeta函数正则化处理的分歧进行了比较,使用非交换几何(NCG)和修改色散关系(MDR)得到的结果。在这两个NCG和MDR没有重整化计划是必要的,以消除与传统方法中发生的无穷大。

英文摘要:

We compute Zero Point Energy in a spherically symmetric background with the help of the Wheeler-DeWitt equation. This last one is regarded as a Sturm-Liouville problem with the cosmological constant considered as the associated eigenvalue. The graviton contribution, at one loop is extracted wit the help of a variational approach together with Gaussian trial functionals. The divergences handled with a zeta function regularization are compared with the results obtained using a Noncommutative Geometry (NCG) and Modified Dispersion Relations (MDR). In both NCG and MDR no renormalization scheme is necessary to remove infinities in contrast to what happens in conventional approaches.

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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