Generalised Uncertainty Relations and the Problem of Dark Energy
- URL: http://arxiv.org/abs/2112.13938v2
- Date: Tue, 5 Jul 2022 02:06:57 GMT
- Title: Generalised Uncertainty Relations and the Problem of Dark Energy
- Authors: Matthew J. Lake
- Abstract summary: We outline a new model in which generalised uncertainty relations, that govern the behaviour of microscopic world, and dark energy, are intrinsically linked via the quantum properties of space-time.
In this approach the background is treated as a genuinely quantum object, with an associated state vector, and additional fluctuations of the geometry naturally give rise to the extended generalised uncertainty principle (EGUP)
An effective dark energy density then emerges from the field that minimises the modified uncertainty relations.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We outline a new model in which generalised uncertainty relations, that
govern the behaviour of microscopic world, and dark energy, that determines the
large-scale evolution of the Universe, are intrinsically linked via the quantum
properties of space-time. In this approach the background is treated as a
genuinely quantum object, with an associated state vector, and additional
fluctuations of the geometry naturally give rise to the extended generalised
uncertainty principle (EGUP). An effective dark energy density then emerges
from the field that minimises the modified uncertainty relations. These results
are obtained via modifications of the canonical quantum operators, but without
modifications of the canonical Heisenberg algebra, allowing many well known
problems associated with existing GUP models to be circumvented.
Related papers
- Generalized Extended Uncertainty Principles, Liouville theorem and density of states: Snyder-de Sitter and Yang models [0.0]
Generalized Uncertainty Principle (GUP) and Extended Uncertainty Principle (EUP) introduce quantum gravitational effects at small and large distances.
A combination of GUP and EUP, the Generalized Extended Uncertainty Principle (GEUP or EGUP), further generalizes these modifications by incorporating noncommutativity in both coordinates and momenta.
This paper examines the impact of GEUP on the Liouville theorem in statistical physics and density of states within non-relativistic quantum mechanics framework.
arXiv Detail & Related papers (2024-09-08T14:43:05Z) - Entropic uncertainty relations in Schwarzschild space-time [10.560954016047198]
We propose a generalized entropic uncertainty relation for arbitrary multiple-observable in multipartite system.
We discuss the proposed uncertainty relations and quantum coherence in the context of Schwarzschild space-time.
arXiv Detail & Related papers (2024-07-18T02:26:21Z) - Enhanced Entanglement in the Measurement-Altered Quantum Ising Chain [46.99825956909532]
Local quantum measurements do not simply disentangle degrees of freedom, but may actually strengthen the entanglement in the system.
This paper explores how a finite density of local measurement modifies a given state's entanglement structure.
arXiv Detail & Related papers (2023-10-04T09:51:00Z) - Matter relative to quantum hypersurfaces [44.99833362998488]
We extend the Page-Wootters formalism to quantum field theory.
By treating hypersurfaces as quantum reference frames, we extend quantum frame transformations to changes between classical and nonclassical hypersurfaces.
arXiv Detail & Related papers (2023-08-24T16:39:00Z) - Quantum Geometry of Expectation Values [1.261852738790008]
We show that the boundary of expectation value space corresponds to the ground state, which presents a natural bound that generalizes Heisenberg's uncertainty principle.
Our approach provides an alternative time-independent quantum formulation that transforms the linear problem in a high-dimensional Hilbert space into a nonlinear algebro-geometric problem in a low dimension.
arXiv Detail & Related papers (2023-01-14T14:01:41Z) - A framework for nonrelativistic isotropic models based on generalized
uncertainty principles [0.0]
We show simple dimensional analysis allows for building a unified framework containing any isotropic generalized uncertainty principle (iGUP)
At last, we translate current bounds on three often investigated GUP models into bounds on parameters of such unified iGUP framework.
arXiv Detail & Related papers (2022-02-04T09:37:53Z) - The origin of loose bound of the thermodynamic uncertainty relation in a
dissipative two-level quantum system [0.0]
thermodynamic uncertainty relations dictate the trade-off between dissipation and fluctuations of irreversible current.
It has been noticed that the bound is less tight in open quantum processes.
Our study offers a better understanding of how quantum nature affects the TUR bound.
arXiv Detail & Related papers (2021-08-10T00:26:02Z) - Quantum Causal Inference in the Presence of Hidden Common Causes: an
Entropic Approach [34.77250498401055]
We put forth a new theoretical framework for merging quantum information science and causal inference by exploiting entropic principles.
We apply our proposed framework to an experimentally relevant scenario of identifying message senders on quantum noisy links.
This approach can lay the foundations of identifying originators of malicious activity on future multi-node quantum networks.
arXiv Detail & Related papers (2021-04-24T22:45:50Z) - Non-equilibrium stationary states of quantum non-Hermitian lattice
models [68.8204255655161]
We show how generic non-Hermitian tight-binding lattice models can be realized in an unconditional, quantum-mechanically consistent manner.
We focus on the quantum steady states of such models for both fermionic and bosonic systems.
arXiv Detail & Related papers (2021-03-02T18:56:44Z) - A New Approach to Generalised Uncertainty Relations [0.0]
We outline a new model in which generalised uncertainty relations are obtained without modified commutation relations.
The spatial background is treated as a genuinely quantum object, with an associated state vector.
This approach solves (or rather, evades) well known problems associated with modified commutators.
arXiv Detail & Related papers (2020-08-30T14:27:56Z) - Unitary preparation of many body Chern insulators: Adiabatic bulk
boundary correspondence [14.4034719868008]
We prepare an out-of-equilibrium many-body Chern insulator (CI) and associated bulk-boundary correspondence unitarily.
We show that a non-linear ramp may work more efficiently in approaching the topological state.
We also compute the edge current in the time evolved state of the system under a semi-periodic boundary condition.
arXiv Detail & Related papers (2020-05-04T13:14:26Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.