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A phenomenology for the deep spatial geometry of loop quantum gravity is introduced. In the context of a simple model, an atom of space, it is shown how purely combinatorial structures can affect observations. The angle operator is used to…

广义相对论与量子宇宙学 · 物理学 2014-11-21 Seth A. Major

The paper reviews the most illustrative cases of the "peculiar/anomalous" experiences of time (and, to a lesser extent, also space) and discusses a simple algebraic geometrical model accounting for the most pronounced of them.

综合物理 · 物理学 2014-01-07 Metod Saniga

In this work we scrutinize the deterministic nature of globally hyperbolic space-times from the point of view of an observer. We show that a space-time point $q \in M$ that lies to the future of an observer at $p \in M$, receives signals…

综合物理 · 物理学 2018-07-20 Koray Düztaş

The notion of relativistic observer is confronted with Naveira's classification of (pseudo-)Riemannian almost-product structures on space-time manifolds. Some physical properties and their geometrical counterparts are shortly discussed.

广义相对论与量子宇宙学 · 物理学 2014-12-04 Andrzej Borowiec , Aneta Wojnar

The hypothesis concerning the off-site continuum existence is investigated from the point of view of the mathematical theory of sets. The principles and methods of the mathematical description of the physical objects from different off-site…

综合物理 · 物理学 2007-06-04 A. V. Novikov-Borodin

In a previous effort [arXiv:1708.05492] we have created a framework that explains why topological structures naturally arise within a scientific theory; namely, they capture the requirements of experimental verification. This is…

综合物理 · 物理学 2020-06-25 Gabriele Carcassi , Christine A. Aidala

We discuss a model of a conformal p-brane interacting with the world volume metric and connection. The purpose of the model is to suggest a mechanism by which gravity coupled to p-branes leads to the formation of structure rather than…

高能物理 - 理论 · 物理学 2016-09-06 A. Aurilia , A. Smailagic , E. Spallucci

We discuss in a critical way the physical foundations of geometric structure of relativistic theories of gravity by the so-called Ehlers-Pirani-Schild formalism. This approach provides a natural interpretation of the observables showing how…

广义相对论与量子宇宙学 · 物理学 2012-07-26 S. Capozziello , M. De Laurentis , L. Fatibene , M. Francaviglia

We discuss several aspects of the geometry of vector fields in (Poincare'-Dulac) normal form. Our discussion relies substantially on Michel theory and aims at a constructive approach to simplify the analysis of normal forms via a splitting…

数学物理 · 物理学 2019-01-18 Giuseppe Gaeta

A general formal definition of a theory of space and time compatible with the inertia principle is given. The formal definition of reference frame and inertial equivalence between reference frames are used to construct the class of inertial…

广义相对论与量子宇宙学 · 物理学 2007-05-23 E. Caccese , V. A. Cimmelli , A. R. Pace

The concept of viewing graph solvability has gained significant interest in the context of structure-from-motion. A viewing graph is a mathematical structure where nodes are associated to cameras and edges represent the epipolar geometry…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Federica Arrigoni , Kathlén Kohn , Andrea Fusiello , Tomas Pajdla

A formulation of Poincare symmetry as an inner symmetry of field theories defined on a fixed Minkowski spacetime is given. Local P gauge transformations and the corresponding covariant derivative with P gauge fields are introduced. The…

广义相对论与量子宇宙学 · 物理学 2009-10-28 C. Wiesendanger

The quantum mechanics description of a physical object stretched in space and stable in time from the relativistic space-time properties point of view, introduced in special theory of relativity, is considered and analysed. The mathematical…

量子物理 · 物理学 2007-05-23 Andrey V. Novikov-Borodin

We lay the groundwork for a formal framework that studies scientific theories and can serve as a unified foundation for the different theories within physics. We define a scientific theory as a set of verifiable statements, assertions that…

人工智能 · 计算机科学 2019-02-20 Gabriele Carcassi , Christine A. Aidala

We consider "unphysical", kinematic observables that do not commute with the constraints of a gauge system in the context of an extension of the system. We show that these observables, while not predictable, can nevertheless be said to have…

广义相对论与量子宇宙学 · 物理学 2008-12-04 Frank Hellmann

The geometric foundations of General Relativity are revisited, with particular attention to its gauge invariance, as a key to understanding the true nature of spacetime. Beyond the common image of spacetime as a deformable 'fabric' filling…

广义相对论与量子宇宙学 · 物理学 2025-10-17 Jaume de Haro , Emilio Elizalde

The question of what should be meant by a measurement is tackled from a mathematical perspective whose physical interpretation is that a measurement is a fundamental process via which a finite amount of classical information is produced.…

量子物理 · 物理学 2023-01-10 Pedro Resende

Interpretations of quantum theory have traditionally assumed a "Galilean" observer, a bare "point of view" implemented physically by a quantum system. This paper investigates the consequences of replacing such an…

量子物理 · 物理学 2012-02-21 Chris Fields

The logical line is traced of formulation of theory of mechanics founded on the basic correlations of mathematics of hypercomplex numbers and associated geometric images. Namely, it is shown that the physical equations of quantum, classical…

综合物理 · 物理学 2016-05-10 Alexander P. Yefremov

The ability to discover abstract physical concepts and understand how they work in the world through observing lies at the core of human intelligence. The acquisition of this ability is based on compositionally perceiving the environment in…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Qu Tang , XiangYu Zhu , Zhen Lei , ZhaoXiang Zhang