The Higgs Boson and the Resonances at the Large Hadron Collider
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On the Stability of Classical Orbits of the Hydrogen Ground State in Stochastic Electrodynamics
entropy Article On the Stability of Classical Orbits of the Hydrogen Ground State in Stochastic Electrodynamics Theodorus M. Nieuwenhuizen 1,2 1 Institute for Theoretical Physics, P.O. Box 94485, 1098 XH Amsterdam, The Netherlands; [email protected]; Tel.: +31-20-525-6332 2 International Institute of Physics, UFRG, Av. O. Gomes de Lima, 1722, 59078-400 Natal-RN, Brazil Academic Editors: Gregg Jaeger and Andrei Khrennikov Received: 19 February 2016; Accepted: 31 March 2016; Published: 13 April 2016 Abstract: De la Peña 1980 and Puthoff 1987 show that circular orbits in the hydrogen problem of Stochastic Electrodynamics connect to a stable situation, where the electron neither collapses onto the nucleus nor gets expelled from the atom. Although the Cole-Zou 2003 simulations support the stability, our recent numerics always lead to self-ionisation. Here the de la Peña-Puthoff argument is extended to elliptic orbits. For very eccentric orbits with energy close to zero and angular momentum below some not-small value, there is on the average a net gain in energy for each revolution, which explains the self-ionisation. Next, an 1/r2 potential is added, which could stem from a dipolar deformation of the nuclear charge by the electron at its moving position. This shape retains the analytical solvability. When it is enough repulsive, the ground state of this modified hydrogen problem is predicted to be stable. The same conclusions hold for positronium. Keywords: Stochastic Electrodynamics; hydrogen ground state; stability criterion PACS: 11.10; 05.20; 05.30; 03.65 1. Introduction Stochastic Electrodynamics (SED) is a subquantum theory that considers the quantum vacuum as a true physical vacuum with its zero-point modes being physical electromagnetic modes (see [1,2]). -
The Casimir-Polder Effect and Quantum Friction Across Timescales Handelt Es Sich Um Meine Eigen- Ständig Erbrachte Leistung
THECASIMIR-POLDEREFFECT ANDQUANTUMFRICTION ACROSSTIMESCALES JULIANEKLATT Physikalisches Institut Fakultät für Mathematik und Physik Albert-Ludwigs-Universität THECASIMIR-POLDEREFFECTANDQUANTUMFRICTION ACROSSTIMESCALES DISSERTATION zu Erlangung des Doktorgrades der Fakultät für Mathematik und Physik Albert-Ludwigs Universität Freiburg im Breisgau vorgelegt von Juliane Klatt 2017 DEKAN: Prof. Dr. Gregor Herten BETREUERDERARBEIT: Dr. Stefan Yoshi Buhmann GUTACHTER: Dr. Stefan Yoshi Buhmann Prof. Dr. Tanja Schilling TAGDERVERTEIDIGUNG: 11.07.2017 PRÜFER: Prof. Dr. Jens Timmer Apl. Prof. Dr. Bernd von Issendorff Dr. Stefan Yoshi Buhmann © 2017 Those years, when the Lamb shift was the central theme of physics, were golden years for all the physicists of my generation. You were the first to see that this tiny shift, so elusive and hard to measure, would clarify our thinking about particles and fields. — F. J. Dyson on occasion of the 65th birthday of W. E. Lamb, Jr. [54] Man kann sich darüber streiten, ob die Welt aus Atomen aufgebaut ist, oder aus Geschichten. — R. D. Precht [165] ABSTRACT The quantum vacuum is subject to continuous spontaneous creation and annihi- lation of matter and radiation. Consequently, an atom placed in vacuum is being perturbed through the interaction with such fluctuations. This results in the Lamb shift of atomic levels and spontaneous transitions between atomic states — the properties of the atom are being shaped by the vacuum. Hence, if the latter is be- ing shaped itself, then this reflects in the atomic features and dynamics. A prime example is the Casimir-Polder effect where a macroscopic body, introduced to the vacuum in which the atom resides, causes a position dependence of the Lamb shift. -
Dynamic Quantum Vacuum and Relativity
Dynamic Quantum Vacuum and Relativity Davide Fiscaletti*, Amrit Sorli** *SpaceLife Institute, San Lorenzo in Campo (PU), Italy **Foundations of Physics Institute, Idrija, Slovenia [email protected] [email protected] Abstract A model of a three-dimensional quantum vacuum with variable energy density is proposed. In this model, time we measure with clocks is only a mathematical parameter of material changes, i.e. motion in quantum vacuum. Inertial mass and gravitational mass have origin in dynamics between a given particle or massive body and diminished energy density of quantum vacuum. Each elementary particle is a structure of quantum vacuum and diminishes quantum vacuum energy density. Symmetry “particle – diminished energy density of quantum vacuum” is the fundamental symmetry of the universe which gives origin to mass and gravity. Special relativity’s Sagnac effect in GPS system and important predictions of general relativity such as precessions of the planets, the Shapiro time delay of light signals in a gravitational field and the geodetic and frame-dragging effects recently tested by Gravity Probe B, have origin in the dynamics of the quantum vacuum which rotates with the earth. Gravitational constant GN and velocity of light c have small deviations of their value which are related to the variable energy density of quantum vacuum. Key words: energy density of quantum vacuum, Sagnac effect, relativity, dark energy, Mercury precession, symmetry, gravitational constant. PACS numbers: 04. ; 04.20-q ; 04.50.Kd ; 04.60.-m. 1. Introduction The idea of 19th century physics that space is filled with “ether” did not get experimental prove in order to remain a valid concept of today physics. -
The Fifth Force [Franklin 1993], Which Gives a Detailed Annotated History of the fifth Force Effort Along with Extensive References
Eur. Phys. J. H DOI: 10.1140/epjh/e2015-60044-5 THE EUROPEAN PHYSICAL JOURNAL H Personal recollection The fifth force: A personal history Ephraim Fischbacha Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA Received 12 September 2015 / Received in final form 14 September 2015 Published online 22 October 2015 c EDP Sciences, Springer-Verlag 2015 Abstract. On January 6, 1986, a paper written by our group appeared in Physical Review Letters entitled “Reanalysis of the E¨otv¨os Exper- iment”. In that Letter we reanalyzed a well-known 1922 paper by E¨otv¨os, Pek´ar, and Fekete (EPF) which compared the accelerations of samples of different composition to the Earth. Our surprising con- clusion was that “Although the E¨otv¨os experiment has been universally interpreted as having given null results, we find in fact that this is not the case”. Two days later a front page story appeared in the New York Times under the headline “Hints of 5th Force in Universe Challenge Galileo’s Findings”, and so was born the concept of a “fifth force”. In this personal history I review the pre-history which motivated our pa- per, and discuss details of our reanalysis of the EPF paper that have not been presented previously. Our work led to illuminating correspondence with Robert Dicke and Richard Feynman which are presented here for the first time. I also discuss an interesting meeting with T.D. Lee, one of whose papers with C.N. Yang provided part of the theoretical mo- tivation for our work. -
Vacuum Energy
Vacuum Energy Mark D. Roberts, 117 Queen’s Road, Wimbledon, London SW19 8NS, Email:[email protected] http://cosmology.mth.uct.ac.za/ roberts ∼ February 1, 2008 Eprint: hep-th/0012062 Comments: A comprehensive review of Vacuum Energy, which is an extended version of a poster presented at L¨uderitz (2000). This is not a review of the cosmolog- ical constant per se, but rather vacuum energy in general, my approach to the cosmological constant is not standard. Lots of very small changes and several additions for the second and third versions: constructive feedback still welcome, but the next version will be sometime in coming due to my sporadiac internet access. First Version 153 pages, 368 references. Second Version 161 pages, 399 references. arXiv:hep-th/0012062v3 22 Jul 2001 Third Version 167 pages, 412 references. The 1999 PACS Physics and Astronomy Classification Scheme: http://publish.aps.org/eprint/gateway/pacslist 11.10.+x, 04.62.+v, 98.80.-k, 03.70.+k; The 2000 Mathematical Classification Scheme: http://www.ams.org/msc 81T20, 83E99, 81Q99, 83F05. 3 KEYPHRASES: Vacuum Energy, Inertial Mass, Principle of Equivalence. 1 Abstract There appears to be three, perhaps related, ways of approaching the nature of vacuum energy. The first is to say that it is just the lowest energy state of a given, usually quantum, system. The second is to equate vacuum energy with the Casimir energy. The third is to note that an energy difference from a complete vacuum might have some long range effect, typically this energy difference is interpreted as the cosmological constant. -
Fifth Forces
FIFTH FORCES Symmetry Tests in Nuclei and Atoms KITP, Santa Barbara Jonathan Feng, UC Irvine 19 September 2016 19 Sep 2016 Feng 1 FUNDAMENTAL FORCES • We know of four fundamental forces Gravity Electromagnetism Strong Weak • A fifth one would be a big deal • Forces can be mediated by a host of particles: pions, Higgs boson, dilaton, towers of KK gravitons,... • In this talk, “5th force” refers to a force mediated by a new spin-1 gauge boson 19 Sep 2016 Feng 2 5TH FORCE MOTIVATION: UNIFICATION • Quantum numbers: e.g., SU(3) x SU(2) x U(1) à SO(10) • Unification of couplings: at a perturbative value and at a scale below Mplanck but high enough to satisfy proton decay • Any GUT group SO(10) or bigger has rank > 4, implies 5th force: U(1)B-L , Z’ gauge bosons, etc. 19 Sep 2016 Feng 3 5TH FORCE MOTIVATION: DARK MATTER • All evidence for dark matter is gravitational. Perhaps its in a hidden sector, composed of particles with no SM gauge interactions (electromagnetic, weak, strong) Hidden SM X • This hidden sector may have a rich structure with matter and forces of its own Lee, Yang (1956); Kobsarev, Okun, Pomeranchuk (1966); Blinnikov, Khlopov (1982); Foot, Lew, Volkas (1991); Hodges (1993); Berezhiani, Dolgov, Mohapatra (1995); … 19 Sep 2016 Feng 4 DM PORTALS • Astrophysics is sensitive to DM-DM interactions, but particle and nuclear physics are determined by DM-SM interactions • There are many ways the hidden particles could couple to us. Use effective operators as an organizing principle: where the operators are grouped by their mass dimension, with [scalar] = 1, [fermion] = 3/2, [Fµν] = 2 • M is a (presumably) large “mediator mass,” so start with dimension 4 operators. -
Effects of the Gravivector and Graviscalar Fields in N = 2,8
TTWOOlfiS LABORATORI NAZIONALI Dl FRASCATI SIS - Pubblicazioni LNF-96/026 (P) 30 Maggio 1996 la //" f"" ^ \p” o^Xp Effects of the Gravi vector and Graviscalar Fields in N = 2,8 Supergravity Stefano Bellucci INFN-Laboratori Nazionali di Frascati, P.O. Box 13, 1-00044 Frascati, Roma (Italy) and Valerio Faraoni Department of Physics and Astronomy, University of Victoria P.O. Box 3055, Victoria, B.C. V8W 3P6 (Canada) Abstract The available tests of the equivalence principle constrain the mass of the Higgs- like boson appearing in extended supergravity theories. We determine the con straints imposed by high precision experiments on the antigravity fields (gravivec- tor and graviscalar) arising from N = 2,8 supergravity. iimoN OF THIS DOCUMENT IS UNLIMITED PACS: 04.65+e, 04.80.Cc FOREIGN SALE! PROHIBITED Accepted for publication in Physics Letters B DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document — 2 — The discovery that N > 1 supergravity theories lead to antigravity is due to the work of the late J. Scherk [1, 2]. In a recent paper we have revived the interest for the implications of extended supergravity theories for antigravity [3]. This interest is connected to the high precision experiment at LEAR (CERN) measuring the difference in the gravitational acceleration of the proton and the antiproton [4]. For a review of earlier ideas about antigravity the reader is referred to the extensive article by Nieto and Goldman (5] and the references therein. The supergravity multiplet in the N = 2,8 cases contains, in addition to the graviton (J = 2), a vector field Aj, (J — 1). -
Lamb Shift Spotted in Cold Gases
VIEWPOINT Lamb Shift Spotted in Cold Gases Cold atomic gases exhibit a phononic analog of the Lamb shift, in which energy levels shift in the presence of the quantum vacuum. by Vera Guarrera∗,y ccording to quantum mechanics, vacuum is not just empty space. Instead, it boils with fluctu- ations—virtual photons popping in and out of existence—that can affect particles embedded in Ait. The celebrated Lamb shift, first observed in 1947 by Willis Lamb and Robert Retherford [1], is a seminal example of this phenomenon (see 27 July 2012 Focus story). The Lamb shift is a tiny difference in energy between two levels of a hy- drogen atom that should otherwise have the same energy in classical empty space (see Fig. 1). It arises because zero-point fluctuations of the electromagnetic field in vacuum perturb the position of the hydrogen atom’s single bound electron. The observation of the effect had a disruptive impact on the developments of quantum mechanics as, at the time, theory had no explanation for it. This paradigmatic model can be applied to different phys- ical systems. For example, we can create a solid-state analog Figure 1: The Lamb shift is an energy shift of the energy levels of the hydrogen atom caused by the coupling of the atom's electron of the Lamb shift if we replace hydrogen’s electron with an to fluctuations in the vacuum. A similar scenario has been realized electron bound to a defect in a semiconductor, and replace by Rentrop et al. [3] in an ultracold atom experiment. -
Advanced Propulsion Physics: Harnessing the Quantum Vacuum
Nuclear and Emerging Technologies for Space (2012) 3082.pdf Advanced Propulsion Physics: Harnessing the Quantum Vacuum. H. White 1 and P. March 2, 1NASA JSC, NASA Pkwy, M/C EP411, Houston, TX 77058 [email protected] 2NASA JSC [email protected] . Introduction: Can the properties of the to be pulled apart. Although the forces have typically quantum vacuum be used to propel a spacecraft? The been small, from a practical perspective, micro- idea of pushing off the vacuum is not new, in fact the electromechanical systems (MEMS) are already utiliz- idea of a “quantum ramjet drive” was proposed by ing this phenomenon in design application. Arthur C. Clark (proposer of geosynchronous commu- How much energy is in the Quantum Va- nications satellites in 1945) in the book Songs of Dis- cuum? The theoretical calculation for the absolute zero tant Earth in 1985: “If vacuum fluctuations can be har- ground state of the QV can be calculated using the nessed for propulsion by anyone besides science- following equation[7]: ω fiction writers, the purely engineering problems of cutoff hω 3 interstellar flight would be solved.” [1]. When this = ω E0 ∫ 2 3 d question is viewed strictly classically, the answer is 2π c ω=0 clearly no, as there is no reaction mass to be used to Using the Plank frequency as upper cutoff yields a conserve momentum. However, Quantum Electrody- prediction of ~10 114 J/m 3. Current astronomical obser- namics (QED)[2], which has made predictions verified vations put the critical density at 1*10 -26 kg/m 3. -
Three-Dimensional Imaging of Cavity Vacuum with Single Atoms Localized by a Nanohole Array
ARTICLE Received 9 Aug 2013 | Accepted 12 Feb 2014 | Published 7 Mar 2014 DOI: 10.1038/ncomms4441 Three-dimensional imaging of cavity vacuum with single atoms localized by a nanohole array Moonjoo Lee1,w, Junki Kim1, Wontaek Seo1, Hyun-Gue Hong1, Younghoon Song1, Ramachandra R. Dasari2 & Kyungwon An1 Zero-point electromagnetic fields were first introduced to explain the origin of atomic spontaneous emission. Vacuum fluctuations associated with the zero-point energy in cavities are now utilized in quantum devices such as single-photon sources, quantum memories, switches and network nodes. Here we present three-dimensional (3D) imaging of vacuum fluctuations in a high-Q cavity based on the measurement of position-dependent emission of single atoms. Atomic position localization is achieved by using a nanoscale atomic beam aperture scannable in front of the cavity mode. The 3D structure of the cavity vacuum is reconstructed from the cavity output. The root mean squared amplitude of the vacuum field at the antinode is also measured to be 0.92±0.07 Vcm À 1. The present work utilizing a single atom as a probe for sub-wavelength imaging demonstrates the utility of nanometre- scale technology in cavity quantum electrodynamics. 1 Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea. 2 G. R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. w Present address: Institute for Quantum Electronics, ETH Zu¨rich, Zu¨rich CH-8093, Switzerland. Correspondence and requests for materials should be addressed to K.A. (email: [email protected]). NATURE COMMUNICATIONS | 5:3441 | DOI: 10.1038/ncomms4441 | www.nature.com/naturecommunications 1 & 2014 Macmillan Publishers Limited. -
Particle Physics Study Finds New Data for Extra Z-Bosons and Potential Fifth Force of Nature 28 April 2009
Particle physics study finds new data for extra Z-bosons and potential fifth force of nature 28 April 2009 The Large Hadron Collider is an enormous particle The original work by Wieman used a table-top accelerator whose 17-mile tunnel straddles the apparatus at the University of Colorado in Boulder, borders of France and Switzerland. A group of Colo. The Boulder team monitored a "twinge" of physicists at the University of Nevada, Reno has weak force in atoms, which are otherwise governed analyzed data from the accelerator that could by the electromagnetic force. The Standard Model ultimately prove or disprove the possibility of a fifth of elementary particles, developed in the early force of nature. 1970s, holds that heavy particles, called Z-bosons, carry this weak force. In contrast to the As the largest science instrument ever built, the electromagnetic force, the weak force violates LHC has the science community buzzing with mirror symmetry: an atom and its mirror image excitement as it may help in understanding the behave differently. This is known to physicists as inner workings of Nature. "parity violation." Remarkably, some of the new physics that may be The Boulder group's experiment opened the door to studied at this $6 billion facility can be probed new inquiry, according to Derevianko. using low-cost experiments fitting in a typical laboratory room. "It pointed out a discrepancy, and hinted at a possibility for new physics, in particular, extra Z- In a forthcoming Physical Review Letter article, the bosons," he said. University of Nevada, Reno physicists are reporting an analysis of an experiment on violation Interpretation of the Boulder experiment requires of mirror symmetry in atoms. -
ELEMENTARY PARTICLE THEORY William J
BNL 35788 ELEMEHTAR* PARTICLE THEORY f. 'L)l> ' S.•'/' VA~;~ " tfillin J. Mu-ciano BNL—35788 Department of Physics Brookhav«»*. National Laboratory DE85 006803 Upton, New York 11973 December 1984 DISCLAIMER This report was prepared as an account of woric sponsored toy an agency of the United Stales Government. Neither the United States Government nor any .agency thereof, nor any .of their employees, makes any warranly, express or implied, or assumes any ilegal liability -or responsi- bility for »he accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents thai its use would not anfring; privately owned rights. Refer- ence herein to any specific commercial product, process, or service by trade name, trademaik, manufacturer, or otherwise does not necessarily con'tilulc or imply its endorsement, reran- emendation, or favoring by the United Slates Government or any .agency thereof, 'Hie vicwi; and opinions cf authors expressed herein do not necessarily Mate or reflect those of Jlie Uniled States Government or any agency thereof. To be published in "Proceedings of the "Third Summer School on High-Energy Particle Accelerators", BNL-SONY July 6-16, 1983 The submitted manuscript has been authored under Contract No. DE-AC02-76CHO0Q16 with the U.S. Department of Energy. Accordinglya the TUS. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form on this contribution, or allow others to do so, for U.S. Government purposes. m^<0t fflSTWBOTICN :0F THIS OOCUML'NI IS ELEMENTARY PARTICLE THEORY William J. Mareiano Brookhaven National Laboratory, Upton., NY 11973 TABLE OF CONTENTS I.