Role of acceleration in the expansion of the universe and its influence on an early-universe modified version of the Heisenberg uncertainty principle

8th International Workshop DICE2016: Spacetime - Matter - Quantum Mechanics

物理学;力学

Beckwith, Andrew W.^1

Physics Department, Chongqing University, College of Physics, Chongqing University, Huxi Campus, No. 44 Daxuechen Nanlu, Shapinba District, Chongqing

401331, China^1

关键词: Early universe;    Expansion of the universe;    First principles;    Friedmann equation;    Heisenberg uncertainty principle;    Scale Factor;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/880/1/012057/pdf
DOI  :  10.1088/1742-6596/880/1/012057

学科分类：力学，机械学

来源: IOP

【 摘 要 】

From first principles, we examine what adding acceleration does, and does not do, as to an early-universe modified version of the Heisenberg uncertainty principle. In doing so, we examine a Friedmann equation for the evolution of the scale factor, using two cases explicitly - when the acceleration of the expansion of the scale factor is kept in and when it is out - and the intermediate case of when the acceleration and scale factors are important but not dominant. In doing so we tie this discussion into earlier work done on the HUP.