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Quantum Stabilization of General-Relativistic Variable-Density Degenerate Stars
Trinity College Trinity College Digital Repository Faculty Scholarship 2012 Quantum Stabilization of General-Relativistic Variable-Density Degenerate Stars David Cox Trinity College Ronald Mallett Mark P. Silverman Trinity College, [email protected] Follow this and additional works at: https://digitalrepository.trincoll.edu/facpub Part of the Physics Commons Journal of Modern Physics, 2012, 3, 561-569 doi:10.4236/jmp.2012.37077 Published Online July 2012 (http://www.SciRP.org/journal/jmp) Quantum Stabilization of General-Relativistic Variable-Density Degenerate Stars David Eric Cox1, Ronald L. Mallett1, M. P. Silverman2 1Department of Physics, University of Connecticut, Storrs, USA 2Department of Physics, Trinity College, Hartford, USA Email: [email protected] Received April 23, 2012; revised May 18, 2012; accepted June 3, 2012 ABSTRACT Research by one of the authors suggested that the critical mass of constant-density neutron stars will be greater than eight solar masses when the majority of their neutrons group into bosons that form a Bose-Einstein condensate, pro- vided the bosons interact with each other and have scattering lengths on the order of a picometer. That analysis was able to use Newtonian theory for the condensate with scattering lengths on this order, but general relativity provides a more fundamental analysis. In this paper, we determine the equilibrium states of a static, spherically-symmetric vari- able-density mixture of a degenerate gas of noninteracting neutrons and a Bose-Einstein condensate using general rela- tivity. We use a Klein-Gordan Lagrangian density with a Gross-Pitaevskii term for the condensate and an effective field for the neutrons. -
ANYONS - One Key to Unlock Gravitational-Electromagnetic Union, the Topological Universe, Space- Time Travel, Future Computers, Dark Matter/Dark Energy
Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 15 June 2021 ANYONS - One Key to Unlock Gravitational-Electromagnetic Union, the Topological Universe, Space- time Travel, Future Computers, Dark Matter/Dark Energy by Rodney Bartlett Unaffiliated with Institution – Lives in Australia, Member of ResearchGate and ORCID, Certificates in Astrophysics from ANU (Australian National University), Certificates in Robotics from QUT (Queensland University of Technology, Australia) ABSTRACT In 1982, MIT physicist Frank Wilczek predicted and named ANYONS, quasiparticles (particle-like formations) that are confined to 2 dimensions and were discovered in 2020. The name might come from Prof. Wilczek's lighthearted comment "anything goes". This article's main goal is to show that anyons could be another name for 1) virtual particles, 2) Mobius strips, and 3) figure-8 Klein bottles. Along the way, we'll see the picture painted by the article confirm that Einstein's dream of gravitational- electromagnetic unity fits in with anyons being Mobius strips. The topological hypothesis offers an explanation of dark matter and dark energy. We'll also have encounters with intergalactic travel and imaginary computers. They really could exist but are imaginary in the sense that they use imaginary time (as well as space-time warping). KEYWORDS Anyon, Gravitational-Electromagnetic Unification, Topological Universe, Intergalactic Travel, Future Computers, Dark Matter/Dark Energy GRAVITATIONAL-ELECTROMAGNETIC UNIFICATION What's a method that suggests the unifying of gravitation and electromagnetism? Electronics' binary digits can be used to draw a two-dimensional computer image of a Mobius strip. Two united Mobius strips create a three-dimensional figure-8 Klein bottle (1) that acts as a building block of space, time, forces’ bosons and matter’s fermions. -
![Arxiv:1911.08602V1 [Gr-Qc] 19 Nov 2019](https://docslib.b-cdn.net/cover/5005/arxiv-1911-08602v1-gr-qc-19-nov-2019-85005.webp)
Arxiv:1911.08602V1 [Gr-Qc] 19 Nov 2019
Causality violation without time-travel: closed lightlike paths in G¨odel'suniverse Brien C. Nolan Centre for Astrophysics and Relativity, School of Mathematical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland.∗ We revisit the issue of causality violations in G¨odel'suniverse, restricting to geodesic motions. It is well-known that while there are closed timelike curves in this spacetime, there are no closed causal geodesics. We show further that no observer can communicate directly (i.e. using a single causal geodesic) with their own past. However, we show that this type of causality violation can be achieved by a system of relays: we prove that from any event P in G¨odel'suniverse, there is a future-directed lightlike path - a sequence of future-directed null geodesic segments, laid end to end - which has P as its past and future endpoints. By analysing the envelope of the family of future directed null geodesics emanating from a point of the spacetime, we show that this lightlike path must contain a minimum of eight geodesic segments, and show further that this bound is attained. We prove a related general result, that events of a time orientable spacetime are connected by a (closed) timelike curve if and only if they are connected by a (closed) lightlike path. This suggests a means of violating causality in G¨odel'suniverse without the need for unfeasibly large accelerations, using instead a sequence of light signals reflected by a suitably located system of mirrors. I. INTRODUCTION: GODEL'S¨ UNIVERSE In 1949, Kurt G¨odel[1]published a solution of Einstein's equations which provides what appears to be the first example of a spacetime containing closed timelike curves (CTCs). -
5 VII July 2017
5 VII July 2017 International Journal for Research in Applied Science & Engineering Technology (IJRASET) ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor:6.887 Volume 5 Issue VII, July 2017- Available at www.ijraset.com An Introduction to Time Travel Rudradeep Goutam Mechanical Engg. Sawai Madhopur College of Engineering & Technology, Sawai Madhopur ,.Rajasthan Abstract: Time Travel is an interesting topic for a Human Being and also for physics in Ancient time, The Scientists Thought that the time travel is not possible but after the theory of relativity given by the Albert Einstein, changes the opinion towards the time travel. After this wonderful Research the Scientists started to work on making a Time Machine for Time Travel. Stephon Hawkins, Albert Einstein, Frank j. Tipler, Kurt godel are some well-known names who worked on the time machine. This Research paper introduce about the different ways of Time Travel and about problems to make them practically possible. Keywords: Time travel, Time machine, Holes, Relativity, Space, light, Universe I. INTRODUCTION After the discovery of three dimensions it was a challenge for physics to search fourth dimension. Quantum physics assumes The Time as a fourth special dimension with the three dimensions. Simply, Time is irreversible Succession of past to Future through the present. Science assumes that the time is unidirectional which is directed past to future but the question arise that: Is it possible to travel in Fourth dimension (Time) like the other three dimensions? The meaning of time Travel is to travel in past or future from present. The present is nothing but it is the link between past and future. -
Closed Timelike Curves, Singularities and Causality: a Survey from Gödel to Chronological Protection
Closed Timelike Curves, Singularities and Causality: A Survey from Gödel to Chronological Protection Jean-Pierre Luminet Aix-Marseille Université, CNRS, Laboratoire d’Astrophysique de Marseille , France; Centre de Physique Théorique de Marseille (France) Observatoire de Paris, LUTH (France) [email protected] Abstract: I give a historical survey of the discussions about the existence of closed timelike curves in general relativistic models of the universe, opening the physical possibility of time travel in the past, as first recognized by K. Gödel in his rotating universe model of 1949. I emphasize that journeying into the past is intimately linked to spacetime models devoid of timelike singularities. Since such singularities arise as an inevitable consequence of the equations of general relativity given physically reasonable assumptions, time travel in the past becomes possible only when one or another of these assumptions is violated. It is the case with wormhole-type solutions. S. Hawking and other authors have tried to save the paradoxical consequences of time travel in the past by advocating physical mechanisms of chronological protection; however, such mechanisms remain presently unknown, even when quantum fluctuations near horizons are taken into account. I close the survey by a brief and pedestrian discussion of Causal Dynamical Triangulations, an approach to quantum gravity in which causality plays a seminal role. Keywords: time travel; closed timelike curves; singularities; wormholes; Gödel’s universe; chronological protection; causal dynamical triangulations 1. Introduction In 1949, the mathematician and logician Kurt Gödel, who had previously demonstrated the incompleteness theorems that broke ground in logic, mathematics, and philosophy, became interested in the theory of general relativity of Albert Einstein, of which he became a close colleague at the Institute for Advanced Study at Princeton. -
Remote Viewing. the Complete User's Manual on Experiencing Future Consciousness
Remote Viewing. The Complete User's Manual on Experiencing Future Consciousness Published by the Institute For Solar Studies Scott Rauvers THIS BOOK IS NOT ABOUT GETTING RICH QUICK. ITS TRUE PURPOSE IS TO REVEAL TECHNIQUES AND TECHNOLOGY THAT ALLOW ONE TO TAP INTO THEIR FULL POTENTIAL THIS BOOK IS ALSO AVAILABLE IN NOOK AND KINDLE VERSIONS. JUST ENTER THE BOOK’S TITLE INTO ANY INTERNET SEARCH BOX LOCATE THESE VERSIONS Read the first 3 chapters of this edition free by visiting: www.ez3dbiz.com/arv.html A complete archive of more than 76 remote viewing sessions over the previous 2 years remote viewing the stock market based on the information in this book is archived at: www.ez3dbiz.com/remote_viewing.html This edition not only includes methods and techniques to enhance intuition, but also includes gems and foods proven to enhance intuition. The technology and hardware discussed in this book is the result of the research done on Torsion Fields by Dr. Nikolai Kozyrev. Torsion fields have been shown to interact with the fields of consciousness and time, either making it more or less dense. We devote an entire chapter on Torsion Fields and its effects on time in this edition. Disclaimer No guarantee is provided herein in that any person(s) using the techniques described in this book will profit from trading the stock markets. The reader assumes all risk and liability and shall not hold The Solar Institute or its partners for any losses that may be incurred while using the strategies and methods provided herein. This book, where possible, uses scientific references and facts for the information provided. -
Minkowski Space-Time and Einstein's Now Conundrum
NeuroQuantology | May 2018 | Volume 16 | Issue 5 | Page 23-30 | doi: 10.14704/nq.2018.16.5.1345 Sorli A., Minkowski Space-time and Einstein’s Now Conundrum Minkowski Space-time and Einstein’s Now Conundrum Amrit Sorli 1*, Steve Kaufman 1, Davide Fiscaletti 2 ABSTRACT The Minkowski formula X4=ict indicates that time t does not express the 4th dimension of space-time, i.e., X4 is not t. Therefore, Minkowski space-time is not a 3D+T manifold, it is 4D. The 4D manifold has 4 spatial dimensions and is timeless, in the sense that it does not contain some physical time in wh ich material changes run. In physics we experience the timelessness of 4D space as “Einstein’s Now.” From this perspective, the time that we measure with clocks is just the sequential numerical order of changes, i.e. motions that run in the timeless space of Now. On the other hand, past and future are nothing more than psychological or conceptual realities that derive from the neuronal activity of the brain. Therefore, “time flow” and “arrow of time” have only a mathematical existence. Key Words: Now, Time, Space, Space-Time, GPS, Closed Timeline Curve, Arrow of Time DOI Number: 10.14704/nq.201 8.16.5.1345 NeuroQuantology 2018; 16(5):23-30 Introduction system S, if complex enough, can be separated into 23 Today, 130 years after the pioneering work of a subsystem S2 whose dynamics is described, and Ernst Mach regarding the interpretation of time as another cyclic subsystem S1 which behaves as a a measure of the changes of things, the related clock and that, as a consequence of the gauge ideas that time cannot be considered as a primary invariance, this separation may be made in many physical reality that flows on its own in the ways. -
CTC 1 Running Head: Curva Temporal Cerrada Curva Temporal Cerrada, Viajes En El Tiempo. Miguel Ángel Flores Saldívar 20091151
CTC 1 Running head: Curva Temporal Cerrada Curva Temporal Cerrada, viajes en el tiempo. Miguel Ángel Flores Saldívar 200911518 Habilidades para la Comunicación Escrita CTC 2 Abstract En el siguiente ensayo abordaré un tema que gran parte de la humanidad se ha preguntado, ¿Es posible físicamente, viajar en el tiempo? En este documento mostraré la opinión de diferentes físicos reconocidos y especialistas en las CTC (Closed Timelike Curve) o como mejor se conoce, en el mundo no científico, viajes en el tiempo. Mostrando que viajar en el tiempo sí es posible y cuantas formas hay para viajar en el tiempo. CTC 3 Introducción Todos los seres humanos desde nuestra infancia hemos visto películas de ciencia ficción que mostraban que era posible viajar en el tiempo y que se podría crear una máquina del tiempo en la cual podríamos viajar a través del tiempo ya sea en el pasado como en el futuro o simplemente cuando hacemos cosas que nos arrepentimos o suceden hechos que nos afectan demasiado y decimos “Como quisiera viajar al pasado para evitar aquel suceso.” El ser humano siempre se ha preguntado si es posible viajar en el tiempo. Es difícil definir el tiempo, ya que este no se puede ver, no se puede oler, no se puede tocar pero afecta a nuestra vida y a nuestro universo. Este se ve implicado en todo nuestro universo, pero gracias a los avances en la Física y en la tecnología ahora nos podemos contestar esta pregunta. Pero que haríamos si podríamos viajar por el pasado y el futuro. No sólo se puede viajar hacia adelante y hacia atrás a través del tiempo si no que también hacia los lados. -
JEZIK, KNJIŽEVNOST, VREME: KNJIŽEVNA ISTRAŽIVANJA Biblioteka NAUČNI SKUPOVI
Vesna Lopičić / Biljana Mišić Ilić JEZIK, KNJIŽEVNOST, VREME: KNJIŽEVNA ISTRAŽIVANJA Biblioteka NAUČNI SKUPOVI Urednice: Prof. dr Vesna Lopičić Prof. dr Biljana Mišić Ilić Glavni i odgovorni urednik: Doc. dr Gordana Đigić Akademski odbor: Prof. dr Miloš Kovačević Prof. dr Vesna Lopičić Prof. dr Biljana Mišić Ilić Prof. dr Đorđe Vidanović Prof. dr Sofija Miloradović Prof. dr. Tatjana Paunović Prof. dr Mihailo Antović Prof. dr. Milica Živković Prof. dr. Savka Blagojević Prof. dr Slávka Tomaščíková Prof. dr Walter Epp Prof. dr. Janoš Kenjereš Prof. dr. Kristobal Kanovas Prof. dr. Marija Knežević Sekretari konferencije: Sanja Ignjatović Nikola Tatar Recenzenti: Prof. dr. Zorica Đergović-Joksimović Prof. dr. Tatjana Bijelić Prof. dr. Zoran Paunović Univerzitet u Nišu Filozofski fakultet JEZIK, KNJIŽEVNOST, VREME KNJIŽEVNA ISTRAŽIVANJA Zbornik radova Urednice: Vesna Lopičić Biljana Mišić Ilić Niš, 2017. Recenzenti pojedinačnih radova: Radmila Bodrič Snežana Gudurić Vladimir Jovanović Aleksandar Kavgić Miloš Kovačević Vesna Lopičić Maja Marković Biljana Mišić Ilić Ljilja Nedeljkov Predrag Novakov Vladan Pavlović Anđelka Pejović Dušan Stamenković Selena Stanković Strahinja Stepanov Violeta Stojičić Amina Šiljak-Jesenković Đorđe Vidanović Maja Vukić SADRŽAJ JEZIK, KNJIŽEVNOST, VREME: KNJIŽEVNA ISTRAŽIVANJA UVOD NARATIVNO KONSTRUISANJE TEMPORALNOSTI .............................................. 11 I TEORETSKA RAZMATRANJA Snežana Milosavljević Milić ВРЕМЕНСКО ИСКУСТВО ПРИЧЕ – КА РЕВИЗИЈИ АТЕМПОРАЛНИХ АСПЕКАТА ТЕКСТА ................................................................................................... -
Motion of a Gyroscope on a Closed Timelike Curve
Motion of a gyroscope on a closed timelike curve Brien C. Nolan1, ∗ 1Centre for Astrophysics & Relativity, School of Mathematical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland. We consider the motion of a gyroscope on a closed timelike curve (CTC). A gyroscope is identified with a unit-length spacelike vector - a spin-vector - orthogonal to the tangent to the CTC, and satisfying the equations of Fermi-Walker transport along the curve. We investigate the consequences of the periodicity of the coefficients of the transport equations, which arise from the periodicty of the CTC, which is assumed to be piecewise C2. We show that every CTC with period T admits at least one T −periodic spin-vector. Further, either every other spin-vector is T −periodic, or no others are. It follows that gyroscopes carried by CTCs are either all T −periodic, or are generically not T −periodic. We consider examples of spacetimes admitting CTCs, and address the question of whether T −periodicity of gyroscopic motion occurs generically or only on a negligible set for these CTCs. We discuss these results from the perspective of principles of consistency in spacetimes admitting CTCs. I. INTRODUCTION In this paper, we address the question of consistency in spacetimes admitting closed timelike curves (CTCs) [1{5]. We consider this question from the perspective of the motion of a gyroscope carried by an observer moving on a CTC. In General Relativity (GR), time travel is associated with the presence of CTCs. This involves a point-particle approximation for the putative time machine. But there is a well-advanced theory of extended bodies in GR that builds on the concepts of the linear and angular momentum of the body, its multipole moments and its centre of mass [6{9]. -
Le Livre Des Univers
Facebook : La culture ne s'hérite pas elle se conquiert Copyright Dunod, 2012 Réalisation de la couverture : Quat’coul Conception de la couverture : Raphaël Tardif Le code de la propriété intellectuelle n'autorisant, aux termes des paragraphes 2 et 3 de l'article L122-5, d'une part, que les « copies ou reproductions strictement réservées à l'usage privé du copiste et non destinées à une utilisation collective » et, d'autre part, sous réserve du nom de l'auteur et de la source, que « les analyses et les courtes citations justifiées par le caractère critique, polémique, pédagogique, scientifique ou d'information », toute représentation ou reproduction intégrale ou partielle, faite sans consentement de l'auteur ou de ses ayants droit, est illicite (art; L122-4). Toute représentation ou reproduction, par quelque procédé que ce soit, notamment par téléchargement ou sortie imprimante, constituera donc une contrefaçon sanctionnée par les articles L 335-2 et suivants du code de la propriété intellectuelle. Facebook : La culture ne s'hérite pas elle se conquiert À Tilly Pour qui bien des univers sont à venir Facebook : La culture ne s'hérite pas elle se conquiert Préface Comment peut-on écrire univers au pluriel ? Ne s'agit-il pas d'une « contradiction dans les termes » ? Peut-on donner sens à un « multivers » ? Envisager sérieusement ces éventualités est le défi que relève John Barrow dans cet ouvrage singulier. Écrit par l'un des grands spécialistes internationaux de cosmologie théorique, éminent chercheur de l'Université de Cambridge, ce livre est essentiellement inclassable. Il ne s'agit ni d'un pur récit historique, ni d'une simple vulgarisation scientifique, ni d'une exclusive spéculation philosophique. -
DISCLAIMER This Document Was Prepared As an Account of Work
DISCLAIMER This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government of the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shail not be used for advertising or product endorsement purposes. Work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract W-7405-Eng-48. CONF-9003115- Proceedings DE9I 009432 of the 17th Annual Day of Scientific Lectures and 13th Annual Meeting of the National Society of Black Physicists Edited by Kennedy J. Reed The 1990 Annual Meeting was sponsored by Lawrence Livermore National Laboratory. Additional sponsors were the Office of Naval Research (ONR), the National Aeronautics and Space Administration (NASA), the National Society of Black Physicists (NSBP) and Southern University. The meeting was held on the campus of Southern University, Baton Rouge. 1 DISTRIBUTION OF THIS DOCUMENT IS UNLIMIT6B TABLE OF CONTENTS Tribute to Ernest Coleman 1 Homer A.