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arXiv 2202.02044quant-phhep-phhep-th
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基于广义不确定原理的非相对论各向同性模型框架

A framework for nonrelativistic isotropic models based on generalized uncertainty principles

Andre H. Gomes

摘要:

自然界中基本长度尺度的存在是不同量子引力模型的共同预测。这一发现将深刻地改变目前对量子现象的认识,海森堡不确定原理也有望得到修正。尽管在过去的几十年中,这种可能性的关注,一直没有一个共同的框架,所谓的广义不确定原理(GUP)的系统调查。在这项工作中,我们提供了这样的框架的背景下,非相对论性量子力学。我们的方法是基于非常少的假设:有一个基本的长度尺度,空间各向同性,宇称和时间反转变换下的不变性,以及位置和动量算子的不变性。我们显示简单的量纲分析允许建立一个统一的框架,包含任何各向同性广义不确定原理(iGUP),并讨论了一些流行的GUP模型在此背景下,详细说明框架的相关理论方面。最后,我们翻译目前的边界上的三个经常调查的GUP模型的参数上的界限,这样的统一iGUP框架。

英文摘要:

The existence of a fundamental length scale in Nature is a common prediction of distinct quantum gravity models. Discovery of such would profoundly change current knowledge of quantum phenomena and modifications to the Heisenberg uncertainty principle may be expected. Despite the attention given to this possibility in the past decades, there has been no common framework for a systematic investigation of so called generalized uncertainty principles (GUP). In this work we provide such framework in the context of nonrelativistic quantum mechanics. Our approach is based on very few assumptions: there is a fundamental length scale, space isotropy, invariance under parity and time reversal transformations, and symmetricity of the position and momentum operators. We show simple dimensional analysis allows for building a unified framework containing any isotropic generalized uncertainty principle (iGUP) and discuss some popular GUP models in this context after elaborating on relevant theoretical aspects of the framework. At last, we translate current bounds on three often investigated GUP models into bounds on parameters of such unified iGUP framework.

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