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arXiv 1107.3134hep-th
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有限时间真空存活振幅与真空能量衰减

Finite Time Vacuum Survival Amplitude and Vacuum Energy Decay

Enrique Álvarez, Roberto Vidal

摘要:

通过对真空存活振幅的分析,研究了宇宙常数的两种符号下真空能量的衰减问题。真空存活振幅由${\mathcal A}(z,z^\prime)\equiv <\text{vac}\,z|\text{vac}\,z^\prime>$定义为{\em共形时间} $z$。过渡振幅计算有限的时间跨度,$Z\equiv z^\prime-z$,和他们的{\em后期}的行为(直接关系到推定的衰变宽度的状态),以及瞬态讨论了一阶的耦合常数,$λ$。

英文摘要:

The problem of the vacuum energy decay is studied for both signs of the cosmological constant, through the analysis of the vacuum survival amplitude, defined in terms of the {\em conformal time}, $z$, by ${\mathcal A}(z,z^\prime)\equiv <\text{vac}\,z|\text{vac}\,z^\prime>$. Transition amplitudes are computed for finite time-span, $Z\equiv z^\prime-z$, and their {\em late time} behavior (directly related to the putative decay width of the state) as well as the transients are discussed up to first order in the coupling constant, $λ$.

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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