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Motivated by the works on Equivalence Principle in the context of linear Generalized Uncertainty Principle and, independently, in the context of quadratic Generalized Uncertainty Principle, we expand these endeavors in the context of…

高能物理 - 理论 · 物理学 2022-08-11 Elias C. Vagenas , Ahmed Farag Ali , Mohammed Hemeda , Hassan Alshal

We study the propagation of cosmological gravitational wave (GW) backgrounds from the early radiation era until the present day in modified theories of gravity. Comparing to general relativity (GR), we study the effects that modified…

广义相对论与量子宇宙学 · 物理学 2023-06-21 Yutong He , Alberto Roper Pol , Axel Brandenburg

Different candidates of Quantum Gravity such as String Theory, Doubly Special Relativity, Loop Quantum Gravity and black hole physics all predict the existence of a minimum observable length or a maximum observable momentum which modifies…

高能物理 - 理论 · 物理学 2010-11-30 Pouria Pedram

Many theories that attempt to formulate a quantum description of gravity suggest the existence of a fundamental minimum length scale. A popular method for incorporating this minimum length is through a modification of the Heisenberg…

广义相对论与量子宇宙学 · 物理学 2025-06-18 William M. Campbell , Michael E. Tobar , Serge Galliou , Maxim Goryachev

The Generalized Uncertainty Principle (GUP) and Extended Uncertainty Principle (EUP) are modifications to the Heisenberg Uncertainly Principle (HUP), expected to apply as the energy approaches the Planck scale. Here we consider a possible…

广义相对论与量子宇宙学 · 物理学 2026-02-09 Bernard Carr , Jonas Mureika

Early matter-dominated eras (EMDEs) are a natural feature arising in many models of the early universe and can generate a stochastic gravitational wave background (SGWB) during the transition from an EMDE to the radiation-dominated universe…

宇宙学与河外天体物理 · 物理学 2024-10-01 Nicolas Fernandez , Joshua W. Foster , Benjamin Lillard , Jessie Shelton

A large class of quantum theories of gravity show that the Heisenberg's uncertainty principle is modified to the "Generalised Uncertainty Principle" (GUP) near the Planckian scale. It has also been shown that the GUP induces perturbative…

广义相对论与量子宇宙学 · 物理学 2021-08-12 Ashmita Das , Saurya Das , Elias C. Vagenas

We examine effects of the Generalized Uncertainty Principle, predicted by various theories of quantum gravity to replace the Heisenberg's uncertainty principle near the Planck scale, on post inflation preheating in cosmology, and show that…

高能物理 - 理论 · 物理学 2011-12-21 Wissam Chemissany , Saurya Das , Ahmed Farag Ali , Elias C. Vagenas

We investigate the impact of quantum gravity on accretion onto a modified Schwarzschild black hole within the context of the generalized uncertainty principle (GUP). The minimal measurable length connected to GUP modifies the Schwarzschild…

广义相对论与量子宇宙学 · 物理学 2022-12-08 Anisur Rahaman

According to a number of arguments in quantum gravity, both model-dependent and model-independent, Heisenberg's uncertainty principle is modified when approaching the Planck scale. This deformation is attributed to the existence of a…

广义相对论与量子宇宙学 · 物理学 2023-10-30 Pasquale Bosso , Giuseppe Gaetano Luciano , Luciano Petruzziello , Fabian Wagner

The implications of a Generalized Uncertainty Principle on the Taub cosmological model are investigated. The model is studied in the ADM reduction of the dynamics and therefore a time variable is ruled out. Such a variable is quantized in a…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Marco Valerio Battisti , Giovanni Montani

The existence of a minimum observable length and/or a maximum observable momentum is in agreement with various candidates of quantum gravity such as string theory, loop quantum gravity, doubly special relativity and black hole physics. In…

高能物理 - 理论 · 物理学 2011-03-28 Pouria Pedram , Kourosh Nozari , S. H. Taheri

This work is motivated by the sign problem in a logarithmic parameter of black hole entropy and the existing more massive white dwarfs than the Chandrasekhar mass limit. We examine the quadratic, linear, and linear-quadratic generalized…

广义相对论与量子宇宙学 · 物理学 2021-04-28 Idrus Husin Belfaqih , Harris Maulana , Anto Sulaksono

In this paper, we calculate the relativistic corrections to the Zeeman effect for hydrogen-like atoms based on the Generalized Uncertainty Principle (GUP). We propose a relativistic GUP algebra using the Stetsko and Tkachuk approximation…

量子物理 · 物理学 2024-10-17 Gaurav Bhandari , S. D. Pathak , Manabendra Sharma

Various approaches to Quantum Gravity (such as String Theory and Doubly Special Relativity), as well as black hole physics predict a minimum measurable length, or a maximum observable momentum, and related modifications of the Heisenberg…

高能物理 - 理论 · 物理学 2009-07-29 Ahmed Farag Ali , Saurya Das , Elias C. Vagenas

The Heisenberg Uncertainty Principle (HUP) limits the accuracy in the simultaneous measurements of the position and momentum variables of any quantum system. This is known to be true in the context of non-relativistic quantum mechanics.…

广义相对论与量子宇宙学 · 物理学 2025-03-25 Jaume Giné , Giuseppe Gaetano Luciano

After a critical overview of the Generalized Uncertainty Principle (GUP) applied to compact objects, we propose a texture of Heisenberg uncertainty principle in curved spacetimes (CHUP). CHUP allows to write down physically motivated STUR…

广义相对论与量子宇宙学 · 物理学 2020-12-21 Stefano Viaggiu

A recent theory about the origin of the gravity suggests that the gravity is originally an entropic force. In this work, we discuss the effects of generalized uncertainty principle (GUP) which is proposed by some approaches to quantum…

广义相对论与量子宇宙学 · 物理学 2013-02-25 Ahmed Farag Ali , A. Tawfik

Generalized uncertainty principles are able to serve as useful descriptions of some of the phenomenology of quantum gravity effects, providing an intuitive grasp on non-trivial space-time structures such as a fundamental discreteness of…

高能物理 - 理论 · 物理学 2015-06-03 Martin Bojowald , Achim Kempf

By introducing the generalized uncertainty principle (GUP) on quantum density states, we newly obtain a consistent entropy of a scalar field on the (1+1)-dimensional Maxwell-dilaton background without an artificial cutoff in contrast to the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Wontae Kim , Yong-Wan Kim , Young-Jai Park