Showing papers on "Special relativity (alternative formulations) published in 2017"
Book•
03 Oct 2017
TL;DR: The astounding link between the p np problem and the problem of time quantum mechanics versus general is discussed in this paper, where it is shown that quantum mechanics can be solved in one dimension.
Abstract: The astounding link between the p np problem and the. the quantum mechanics of fate issue 9 time nautilus. theories of the universe quantum mechanics vs general. quantum puting. bbc earth the quantum origin of time. the problem of time quantum mechanics versus general. problem of time. the problem with quantum puters scientific american. philosophical issues in quantum theory stanford. the problem of time quantum mechanics versus general. solved problems on quantum mechanics in one dimension. the problem of time quantum mechanics versus general. the problem of time quantum mechanics versus general. on time in quantum mechanics arxiv. the problem of time quantum mechanics versus general. the problem of time quantum
71 citations
TL;DR: By exploiting Poincaré symmetry and superintegrability, this work shows how to construct, and solve without approximation, new models of laser-matter interactions that improve predictions and analyses for experiments at intense laser facilities.
Abstract: Novel hidden special relativity Poincar\'e symmetries enable the construction of exactly solvable models of classical and quantum charge dynamics in laser fields, potentially allowing analytical studies of laser-matter interactions beyond the plane-wave approximation.
55 citations
TL;DR: In this paper, the behavior of charge carriers mirrors the physics of Einstein's special relativity, and a new analysis shows how to engineer materials where the particles mimic the principles of general relativity, opening the door to novel electronic devices.
Abstract: In a Weyl semimetal, the behavior of charge carriers mirrors the physics of Einstein's special relativity. A new analysis shows how to engineer materials where the particles mimic the principles of general relativity, opening the door to novel electronic devices.
55 citations
01 Jan 2017
TL;DR: A review of previous tests of Lorentz invariance in the field of electrodynamics can be found in this article, where the constancy of the speed of light is investigated.
Abstract: Tests of Lorentz invariance have been performed in wide variety of fields since Einstein’s special relativity was formulated more than 100 years ago. In this chapter, we will review previous tests of Lorentz invariance, particularly in the field of electrodynamics. Firstly, Sect. 2.1 introduces test theories of special relativity and Lorentz invariance, which parameterize possible Lorentz violation. Section 2.2 reviews previous tests of the constancy of the speed of light and shows current upper limits on Lorentz violation. Section 2.3 describes the purpose and the scope of our experiment.
24 citations
TL;DR: In this paper, the authors studied the relativistic effects of two current conducting loops on a permanent magnet and showed that the magnetic field of the magnet can be used to accelerate the signal at speeds exceeding the speed of light.
Abstract: The Newton third law states that any action is countered by a reaction of equal magnitude but opposite direction. The total force in a system not affected by external forces is thus zero. However, according to the principles of relativity, a signal cannot propagate at speeds exceeding the speed of light. Thus the total force cannot be null at a given time. The above conclusion leads to the possibility of a relativistic engine in particular one that is based on a permanent magnet. The analysis is based on a previous paper in which we studied the relativistic effects in a system of two current conducting loops.
23 citations
TL;DR: In this paper, a very special relativity (VSR)-inspired description of the axion electrodynamics is proposed based upon the construction of a proper study of the SIM(2)-VSR gauge-symmetry.
14 citations
01 Jan 2017
TL;DR: The authors argue that co-presentness should be divorced from simultaneity, or, alternatively, a non-solipsist, non-relative, dynamic presentness does not require at least two space-like separated things to be present together.
Abstract: of a dissertation at the University of Miami. Dissertation supervised by Professor Peter J. Lewis. No. of pages in text. (153) When perceiving a bird’s singing a melody, there seems to be a special moment – the present – at which the bird is singing the newest note, and it seems that this special moment is to be filled up with even newer contents, while the bird’s singing the first note seems gone away into the more and more distant past. Such everyday dynamic conception of time faces three important challenges: (a) that we do not have immediate experience as of presentness; (b) that our immediate experience as of presentness or temporal passage does not have metaphysical import; (c) that special relativity does not have room for a non-solipsist, non-relative form of simultaneity or presentness. In response to (a), I argue, for example, part of what it is like to hear a second hand’s ticking as present is essentially the phenomenology of hearing it as following the previous tick. In response to (b), I argue that there is a special kind of temporarily obtaining facts, such as “a token pain instantiates phenomenal presentness,” which do not supervene on eternally obtaining facts, such as “a token pain instantiates phenomenal presentness at a particular time.” In response to (c), I argue that co-presentness should be divorced from simultaneity, or, alternatively, a non-solipsist, non-relative, dynamic presentness does not requires at least two space-like separated things to be present together.
11 citations
TL;DR: In this paper, the authors examine two claims that arise in Brown's account of inertial motion in Physical Relativity (2005), and argue that there is nothing objectionable about inertia and that, while the theorems that motivate Brown's second claim can be said to figure in a deductive-nomological explanation, their main contribution lies in their explication rather than their explanation.
Abstract: I examine two claims that arise in Brown’s account of inertial motion in Physical Relativity (2005). Brown claims there is something objectionable about the way in which the motions of free particles in Newtonian theory and special relativity are coordinated. Brown also claims that since a geodesic principle can be derived in Einsteinian gravitation the objectionable feature is explained away. I argue that there is nothing objectionable about inertia and that, while the theorems that motivate Brown’s second claim can be said to figure in a deductive-nomological explanation, their main contribution lies in their explication rather than their explanation of inertial motion.
10 citations
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TL;DR: In this article, it was shown that there is a friction force associated with spontaneous emission in an ion trap, via the observation of a superposition of different mass states, and the possibility that the physics underlying this effect might be explored in ion traps.
Abstract: We know that in empty space there is no preferred state of rest This is true both in special relativity but also in Newtonian mechanics with its associated Galilean relativity It comes as something of a surprise, therefore, to discover the existence a friction force associated with spontaneous emission he resolution of this paradox relies on a central idea from special relativity even though our derivation of it is non-relativistic We examine the possibility that the physics underlying this effect might be explored in an ion trap, via the observation of a superposition of different mass states
10 citations
TL;DR: In this paper, it is shown that Poincare's electron model consists in assuming that the interior of the world tube of the (hollow) electron is filled with a positive cosmological constant.
8 citations
Posted Content•
TL;DR: In this paper, the EPR correlations are discussed as a simple example of quantum mechanical macroscopic effects with spacelike separation from their causes, whose reliability can be estimated by means of Bayes' theorem.
Abstract: Some of the strategies which have been put forward in order to deal with the inconsistency between quantum mechanics and special relativity are examined. The EPR correlations are discussed as a simple example of quantum mechanical macroscopic effects with spacelike separation from their causes. It is shown that they can be used to convey information, whose reliability can be estimated by means of Bayes' theorem. Some of the current reasons advanced to deny that quantum mechanics contradicts special relativity are refuted, and an historical perspective is provided on the issue.
Posted Content•
TL;DR: In this paper, the authors uncover the methodological logic of the Einsteinian program, which animated the whole program and its development, and as it was revealed in SR, GR, and unified field theory.
Abstract: Relativity was Einstein's main research program and scientific project. It was an open-ended program that developed throughout Einstein's scientific career, giving rise to special relativity, general relativity and unified field theory. In this paper, we want to uncover the methodological logic of the Einsteinian program, which animated the whole program and its development, and as it was revealed in SR, GR, and unified field theory. We aver that the same methodological logic animated all these theories as Einstein's work progressed. Each of these theories contributed towards constructing Einstein's ambitious program. This paper is not a paper in the history of Relativity, but, rather, it utilizes our knowledge of this history to uncover the methodological logic of the relativity program and its development. This logic is latent in the historical narrative, but is not identical to it. We hope to show that the Einsteinian relativity project is still relevant today as a theoretical scheme, despite its failures and despite quantum mechanics.
TL;DR: In this paper, the authors simulate a universe in which the speed of light is slower, so that "everyday" speeds become relativistic, and they describe the physics and technical details of their first planetarium show, "Einstein's Playground", which premiered at the Museum of Science, Boston.
Abstract: The understanding of many aspects of astronomy is closely linked with relativity and the finite speed of light, yet relativity is generally not discussed in great detail during planetarium shows for the general public. One reason may be the difficulty to visualize these phenomena in a way that is appropriate for planetariums; another may be their distance from everyday experiences that makes it hard for audiences to connect with the presentation. In this paper, we describe an effort to visualize special relativity phenomena in an immersive “everyday” scenario. In order to bring special relativity to human scale, we simulate a universe in which the speed of light is slower, so that “everyday” speeds become relativistic. We describe the physics and the technical details of our first planetarium show, “Einstein’s Playground,” which premiered at the Museum of Science, Boston.
TL;DR: In this paper, the authors apply this analysis to the interplay between Fizeau's classic optical experiments and the building of special relativity, and show that Einstein's own inferences from the experiments differ greatly from the inferences drawn by others in that tradition.
Abstract: Experiments may not reveal their full import at the time that they are performed. The scientists who perform them usually are testing a specific hypothesis and quite often have specific expectations limiting the possible inferences that can be drawn from the experiment. Nonetheless, as Hacking has said, experiments have lives of their own. Those lives do not end with the initial report of the results and consequences of the experiment. Going back and rethinking the consequences of the experiment in a new context, theoretical or empirical, has great merit as a strategy for investigation and for scientific problem analysis. I apply this analysis to the interplay between Fizeau's classic optical experiments and the building of special relativity. Einstein's understanding of the problems facing classical electrodynamics and optics, in part, was informed by Fizeau's 1851 experiments. However, between 1851 and 1905, Fizeau's experiments were duplicated and reinterpreted by a succession of scientists, including Hertz, Lorentz, and Michelson. Einstein's analysis of the consequences of the experiments is tied closely to this theoretical and experimental tradition. However, Einstein's own inferences from the experiments differ greatly from the inferences drawn by others in that tradition.
TL;DR: Geometric treatments of both special and general relativity are outlined in this paper, suitable for students in the sciences who are seeing these topics for the first time, and both the advantages and disadvantages of such an approach, and its relationship to more traditional approaches, are discussed.
Abstract: Geometric treatments of both special and general relativity are outlined, suitable for students in the sciences who are seeing these topics for the first time. Both the advantages and disadvantages of such an approach, and its relationship to more traditional approaches, are then discussed.
TL;DR: In this article, the author begins a study of special Relativity on the basis of the measurability notion introduced in his previous works, based on the notion of special-relativity.
Abstract: In this paper the author begins a study of Special Relativity on the basis of the measurability notion introduced in his previous works.
TL;DR: In this paper, the authors explicitly point out the reasons why Special Relativity must be considered as the source of electron deep orbits, and why it dominates their behavior, and show that the cause is the quadratic form of the relativistic expression of energy.
Abstract: In this paper, we explicitly point out the reasons why Special Relativity must be considered as the source of electron deep orbits, and dominates their behavior. We show that the cause is the quadratic form of the relativistic expression of energy, and this clearly appears when we explicitly develop the relativistic Schrodinger equation and compare it with the non-relativistic one.
10 Nov 2017
TL;DR: Arlego et al. as mentioned in this paper presented an analysis of Fabian's work in the context of the Nacional de Investigaciones Cientificas and Tecnicas (CICTE) of Argentina.
Abstract: Fil: Arlego, Marcelo Jose Fabian. Consejo Nacional de Investigaciones Cientificas y Tecnicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina
13 Aug 2017
TL;DR: In this paper, the present status of the pseudo-complex General Relativity (pcGR) is presented, and an energy-momentum tensor is added at the right hand side of the Einstein equations, representing a dark energy related to vacuum fluctuations.
Abstract: The present status of the pseudo-complex General Relativity is presented. The pcGR includes many known theories with a minimal length. Restricting to its simplest form, an energy-momentum tensor is added at the right hand side of the Einstein equations, representing a dark energy, related to vacuum fluctuations. We use a phenomenological ansatz for the density and discuss observable consequences: Quaisperiodic Oscillations (QPO), effects on accretion disks and gravitational waves.
Journal Article•
TL;DR: In this paper, the authors present pictorially the foundation of differential geometry which is a crucial tool for multiple areas of physics, notably general and special relativity, but also mechanics, thermodynamics and solving differential equations.
Abstract: In this article we present pictorially the foundation of differential geometry which is a crucial tool for multiple areas of physics, notably general and special relativity, but also mechanics, thermodynamics and solving differential equations. As all the concepts are presented as pictures, there are no equations in this article. As such this article may be read by pre-university students who enjoy physics, mathematics and geometry. However it will also greatly aid the intuition of an undergraduate and masters students, learning general relativity and similar courses. It concentrates on the tools needed to understand Maxwell's equations thus leading to the goal of presenting Maxwell's equations as 3 pictures.
Posted Content•
TL;DR: In this paper, the causally complete character of complex-dynamical, naturally quantised relativistic and quantum effects revealed previously at the lowest levels of world interaction dynamics is explicitly generalised to all higher levels of unreduced interaction processes.
Abstract: Unified and causal complex-dynamic origin of standard (special and general) relativistic and quantum effects revealed previously at the lowest levels of world interaction dynamics is explicitly generalised to all higher levels of unreduced interaction processes, thus additionally confirming the causally complete character of complex-dynamical, naturally quantised relativity, which does not contain any artificially added, abstract postulates. We demonstrate some elementary applications of this generalised quantum relativity at higher levels of complex brain and social interaction dynamics.
05 Apr 2017
TL;DR: In this article, the authors consider distance and time as fundamental attributes of the reality and the result of their division is velocity, and propose to consider distance as a practicality and velocity as a fundamental attribute.
Abstract: Distance and time are considered fundamental attributes of the reality and the result of their division is velocity. In this paper we suggest, in contrast, to consider distance and velocity as fundamental and time as merely a practicality. This approach yields a new understanding of physics.
Posted Content•
TL;DR: In this paper, it was shown that some primary special relativity effects, which are believed to be hardly detectable in everyday life, such as time dilation, relativistic Doppler effect, and length contraction, should tangibly and spectacularly show up here on Earth.
Abstract: We show that some primary special relativity effects, which are believed to be hardly detectable in everyday life, such as time dilation, relativistic Doppler effect, and length contraction, should tangibly and spectacularly show up here on the Earth. They should occur in ordinary observations of known astronomical phenomena, also when these phenomena involve astronomical systems that move with very low velocities relative to us but are very distant. We shall do that by providing a reanalysis of the so-called Andromeda paradox and by revisiting the standard explanation of the muon lifetime dilation given when this phenomenon is observed from muon's perspective. Ultimately, we shall show that if Lorentz transformations (and basically, special relativity) are meant to entail real physical consequences, then the observable Universe should appear very differently from what we see every clear night.
TL;DR: In this paper, the authors investigated the Thomas-Fermi model for the electron gas in Rindler space and observed that if the uniform acceleration is along + x-direction, then there is y − z-symme...
Abstract: In this paper, we have investigated the Thomas–Fermi model for the electron gas in Rindler space. We have observed that if the uniform acceleration is along + x-direction, then there is y − z-symme...
TL;DR: In this paper, the authors make some clarifications with respect to certain asumptions and demands required by Ricardo Heras in his paper entitled 'Lorentz transformations and the wave equation'.
Abstract: In this comment we make some clarifications with respect to certain asumptions and demands required by Ricardo Heras in his paper entitled 'Lorentz transformations and the wave equation' (2016 Eur. J. Phys. 37 025603).
Book•
04 Jan 2017
Posted Content•
TL;DR: In this article, an alternative theory of special relativity can be built based on the obvious postulates, using the existing mathematical tools, and the results were obtained studying the invariance of a four-dimensional wave equation by the paravector calculus.
Abstract: The article shows that based on the obvious postulates, using the existing mathematical tools, an alternative theory of special relativity can be build. The results were obtained studying the invariance of a four-dimensional wave equation by the paravector calculus. As a field domain the complex space-time was selected. Its meaningfulness and implicit naturalness is shown on simple examples. The aim of the publication is to show that the physical space-time may be viewed from a different perspective, not known so far.