UC Santa Cruz Electronic Theses and Dissertations
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Dear Fellow Quantum Mechanics;
Dear Fellow Quantum Mechanics Jeremy Bernstein Abstract: This is a letter of inquiry about the nature of quantum mechanics. I have been reflecting on the sociology of our little group and as is my wont here are a few notes. I see our community divided up into various subgroups. I will try to describe them beginning with a small group of elderly but distinguished physicist who either believe that there is no problem with the quantum theory and that the young are wasting their time or that there is a problem and that they have solved it. In the former category is Rudolf Peierls and in the latter Phil Anderson. I will begin with Peierls. In the January 1991 issue of Physics World Peierls published a paper entitled “In defence of ‘measurement’”. It was one of the last papers he wrote. It was in response to his former pupil John Bell’s essay “Against measurement” which he had published in the same journal in August of 1990. Bell, who had died before Peierls’ paper was published, had tried to explain some of the difficulties of quantum mechanics. Peierls would have none of it.” But I do not agree with John Bell,” he wrote,” that these problems are very difficult. I think it is easy to give an acceptable account…” In the rest of his short paper this is what he sets out to do. He begins, “In my view the most fundamental statement of quantum mechanics is that the wave function or more generally the density matrix represents our knowledge of the system we are trying to describe.” Of course the wave function collapses when this knowledge is altered. -
M Theory As a Holographic Field Theory
hep-th/9712130 CALT-68-2152 M-Theory as a Holographic Field Theory Petr Hoˇrava California Institute of Technology, Pasadena, CA 91125, USA [email protected] We suggest that M-theory could be non-perturbatively equivalent to a local quantum field theory. More precisely, we present a “renormalizable” gauge theory in eleven dimensions, and show that it exhibits various properties expected of quantum M-theory, most no- tably the holographic principle of ’t Hooft and Susskind. The theory also satisfies Mach’s principle: A macroscopically large space-time (and the inertia of low-energy excitations) is generated by a large number of “partons” in the microscopic theory. We argue that at low energies in large eleven dimensions, the theory should be effectively described by arXiv:hep-th/9712130 v2 10 Nov 1998 eleven-dimensional supergravity. This effective description breaks down at much lower energies than naively expected, precisely when the system saturates the Bekenstein bound on energy density. We show that the number of partons scales like the area of the surface surrounding the system, and discuss how this holographic reduction of degrees of freedom affects the cosmological constant problem. We propose the holographic field theory as a candidate for a covariant, non-perturbative formulation of quantum M-theory. December 1997 1. Introduction M-theory has emerged from our understanding of non-perturbative string dynamics, as a hypothetical quantum theory which has eleven-dimensional supergravity [1] as its low- energy limit, and is related to string theory via various dualities [2-4] (for an introduction and references, see e.g. -
Census Taking
Current Logic of String Theory • Pick an asymptotically cold background. • Calculate the low energy S-matrix (or boundary correlators). • Find a semiclassical action that gives the same amplitudes. • Use the semiclassical action (perhaps non-perturbatively) to construct low energy bulk physics. Background Independence? Bundling different asymptotically cold backgrounds into a single quantum system (Hilbert Space) does not appear to make sense. This is a BIG problem: Real cosmology is NOT asymptotically cold. De Sitter space is asymptotically warm. Finite Hilbert space for every diamond. Banks, Fischler Quantum description ????????????????? Do we have a set of principles that we can rely on? No. Do we need them? Yes. Do we have a set of principles that we can rely on? No. Do we need them? Yes. The measure problem Solve equations of motion in freely falling frame and express A in terms of operators in the remote past. † Ain = U A U Ain Using the S-matrix we can run the operator to the remote future † Aout = S Ain S = (S U†) Ain (U S†) Aout is an operator in the outgoing space of states that has the same statistics as the behind-the-horizon operator A. That is the meaning of Black Hole Complementarity: Conjugation by (S U†). Transition to a “Hat” (supersymmetric bubble with Λ=0) Asymptotically cold at T Æ∞ but not as R Æ∞ Hat Complementarity? The CT’s backward light cone intersects each space- like hypersurface. The hypersurfaces are uniformly negatively curved spaces. Space-like hypersurface intersects the CT’s backward light-cone. In the limit tCT Æ∞ the CT’s Hilbert space becomes infinite. -
Multi-Dimensional Entanglement Transport Through Single-Mode Fibre
Multi-dimensional entanglement transport through single-mode fibre Jun Liu,1, ∗ Isaac Nape,2, ∗ Qianke Wang,1 Adam Vall´es,2 Jian Wang,1 and Andrew Forbes2 1Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China. 2School of Physics, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa (Dated: April 8, 2019) The global quantum network requires the distribution of entangled states over long distances, with significant advances already demonstrated using entangled polarisation states, reaching approxi- mately 1200 km in free space and 100 km in optical fibre. Packing more information into each photon requires Hilbert spaces with higher dimensionality, for example, that of spatial modes of light. However spatial mode entanglement transport requires custom multimode fibre and is lim- ited by decoherence induced mode coupling. Here we transport multi-dimensional entangled states down conventional single-mode fibre (SMF). We achieve this by entangling the spin-orbit degrees of freedom of a bi-photon pair, passing the polarisation (spin) photon down the SMF while ac- cessing multi-dimensional orbital angular momentum (orbital) subspaces with the other. We show high fidelity hybrid entanglement preservation down 250 m of SMF across multiple 2 × 2 dimen- sions, demonstrating quantum key distribution protocols, quantum state tomographies and quantum erasers. This work offers an alternative approach to spatial mode entanglement transport that fa- cilitates deployment in legacy networks across conventional fibre. Entanglement is an intriguing aspect of quantum me- chanics with well-known quantum paradoxes such as those of Einstein-Podolsky-Rosen (EPR) [1], Hardy [2], and Leggett [3]. -
WILLY FISCHLER Born: May 30, 1949 Antwerp, Belgium Education
WILLY FISCHLER Born: May 30, 1949 Antwerp, Belgium Education: Universite Libre de Bruxelles Licence in Physics with \grande distinction", 1972 (Equivalent to the American Masters degree). Universite Libre de Bruxelles Ph.D., 1976 with \la plus grande distinction". Austin Community College Emergency Medical Services Professions EMT Paramedic Certificate, 2009. Nationally Certified Paramedic, 2009- Texas Department of State Health Services Licensed EMT-P, 2009- Present Position: University of Texas at Austin Jane and Roland Blumberg Centennial Professor in Physics 2000- Professor of Physics 1983-2000 Associate Director Theory Group 2003- Marble Falls Area EMS Licensed Paramedic 2009- Past Positions: CERN Geneva 1975-77 Postdoctoral Fellow Los Alamos Scientific Lab, 1977-1979 Postdoctoral Fellow University of Pennsylvania, 1979-1983 Assistant Professor Institute for Advanced Study, Princeton Official Visitor, September 1980 - May 1981 1 On leave - Belgian Army, June 1981 - May 1982 Awards: CERN Fellowship 1975-77 1979-1980 Recipient of Outstanding Junior Researcher Award, DOE 1987-88 Fellow to the Jane and Roland Blumberg Centennial Professorship in Physics Dean's Fellow, Fall 1997 2000{ Jane and Roland Blumberg Centennial Professor in Physics Volunteer: Children's Hospital PACU, 2005-7 Westlake Fire Department, EMT 2006- PUBLICATIONS 1. Gauge invariance in spontaneously broken symmetries: (with R. Brout) Phys. Rev. D11, 905 (1975). 2. Effective potential instabilities and bound-state formation: (with E. Gunzig, and R. Brout) Il Nuovo Cimento 29A, 504 (1975); 3. Effective potential, instabilities and bound state formation: (Adden- dum) (with E. Gunzig, and R. Brout) Il Nuovo Cimento 32A, 125 (1976). 4. Magnetic confinement in non-Abelian gauge field theory: (with F. -
Unity Consciousness: a Quantum Biomechanical Foundation
Theoretical UNITY CONSCIOUSNESS: A QUANTUM BIOMECHANICAL FOUNDATION Thomas E. Beck, Ph.D. & Janet E. Colli, Ph.D. ABSTRACT Citing research in consciousness, quantum physics, biophysics and cosmology, we propose the collective amplification of quantum effects as the basis for scientifically describing Kundalini awakening, and the higher-order, emergent phenomenon of Unity consciousness, Such alterations of consciousness have their origin in quantum-scale processes, such as self-induced transparency, superradiance, superpositions, quantum tunneling, and Bose-Einstein condensa tion, Microtubules are considered to be key components in non-local, quantum processes critical to human consciousness, We postulate that bundles of fibers (neural cells), each containing numerous microtubule "lasers" acting in unison, collectively result in a massive surge of light energy to the brain, The sudden onset and radically altered nature of such states are consis tent with a model based on the activation of a laser. The liquid crystalline nature of the human body likely provides a foundation for the non-local aspect ofVniry consciousness, The unifYing paradigm of the "quantum hologram" is introduced ro apply quantum properties to macroscopic events, KEYWORDS: Uniry consciousness, kundalini, microtubules, non-local communication, Bose-Einstein condensate, liquid crystals, dark matter, zero-point energy Subtle Energies & Energy Medicine • Volume 14 • Number 3 • Page 267 INTRODUCTION he history of humanity has been irreversibly altered by a relative few individuals who have attained the highest state of consciousness known T to humankind: Unity consciousness, described as a merging with the Oneness of all Creation. The historical figures of Buddha ("the illumined one"), Jesus Christ, and the contemporary spiritual leader, His Holiness the Dalai Lama, exemplity those who have contributed to uplifting consciousness through their enlightenment. -
On Monte Carlo Time-Dependent Variational Principles
On Monte Carlo Time-Dependent Variational Principles Von der QUEST-Leibniz-Forschungsschule der Gottfried Wilhelm Leibniz Universit¨atHannover zur Erlangung des akademischen Grades Doktor der Naturwissenschaften { Doctor rerum naturalium { genehmigte Dissertation von FABIANWOLFGANGG UNTERTRANSCHEL¨ Geboren am 10.01.1987 in Gehrden 2016 0 Erstpr¨ufer : Prof. Dr. Reinhard F. Werner Zweitpr¨ufer : Prof. Dr. Klemens Hammerer Beratendes Mitglied des Pr¨ufungsausschusses : Prof. Dr. Tobias J. Osborne Vorsitzender des Pr¨ufungsausschusses : Prof. Dr. Rolf Haug Tag der Promotion: 17. Dezember 2015 On Monte Carlo Time-Dependent Variational Principles Fabian W. G. Transchel Abstract The present dissertation is concerned with the development and implementation of a novel scheme for quantitative, numeric approximation of the dynamics of quantum lattice systems based on the Time-Dependent Variational Principle together with Monte Carlo techniques in order to include dissipative interactions. The specific implementation is demonstrated on both common and not yet in-detail explored Heisenberg- and Fermi-Hubbard models in one and two dimensions. Additionally, the technical requirements regarding computational complexity and capacity are discussed, especially with regards toward parallelizable components of the imple- mentation. Concluding remarks include prospects with respect to application and extension of the presented methods. Keywords: Monte Carlo method, Dissipative Dynamics, Lindblad Equation iii Zusammenfassung Die vorliegende Dissertation befasst sich mit der Entwicklung und Umsetzung eines neuartigen Schemas zur quantitativen numerischen N¨aherung der Dynamik von Quantengittersystemen auf Grundlage des zeitabh¨angigenVariationsprinzips unter Zuhilfenahme von Monte-Carlo-Techniken zur Einbeziehung von dissipativen Wech- selwirkungen. Die Implementierung wird anhand von Beispielen f¨urHeisenberg- und Fermi-Hubbard-Modellen in einer und zwei Dimensionen gezeigt und erl¨autert. -
Arxiv:1107.3800V2 [Physics.Hist-Ph] 30 Nov 2011 Uzigfaue,Sc Stemdfiaino Elt Ythe by Reality of Ment
Quantum magic: A skeptical perspective Giorgio Torrieri FIAS, J.W. Goethe Universit¨at, Frankfurt A.M., Germany torrieri@fias.uni-frankfurt.de Quantum mechanics (QM) has attracted a considerable amount of mysticism, in public opinion and even among academic researches, due to some of its conceptually puzzling features, such as the modification of reality by the observer and entangle- ment. We argue that many popular ”quantum paradoxes” stem from a confusion be- tween mathematical formalism and physics; We demonstrate this by explaining how the paradoxes go away once a different formalism, usually inconvenient to perform calculations, is used. we argue that some modern developments, well-studied in the research literature but generally overlooked by both popular science and teaching- level literature, make quantum mechanics (that is, ”canonical” QM, not extensions of it) less conceptually problematic than it looks at first sight. When all this is looked at together, most “puzzles” of QM are not much different from the well-known paradoxes from probability theory. Consequently, “explanations of QM” involving physical action of consciousness or an infinity of universes are ontologically unnecessary arXiv:1107.3800v2 [physics.hist-ph] 30 Nov 2011 2 I. INTRODUCTION All the way from its origins, the theory of quantum mechanics (QM) [1] has enjoyed a resounding experimental success, but has elicited unease regarding its philosophical impli- cations, and place as a scientific theory. A lot of research effort on the part of distinguished scientists [2–4] (founders of QM among them! [5–8]) has gone into “interpreting” quantum mechanics. This effort has produced quite a few candidates for interpretation, ranging from the sensible but ambiguous Copenhagen interpretation (“quantum variables only refer to what can be known to us, rather than any objective reality”) esoteric ideas (such as “many universes” and a role of consciousness in quantum physics), less ontologically troublesome extensions (“hidden variables”) as well as quite a few “paradoxes”. -
What Is Consciousness? Artificial Intelligence, Real Intelligence, Quantum Mind, and Qualia
What Is Consciousness? Artificial Intelligence, Real Intelligence, Quantum Mind, And Qualia Stuart A. Kauffman1 and Andrea Roli2,3 1Institute for Systems Biology, Seattle, USA 2Department of Computer Science and Engineering, Campus of Cesena, Alma Mater Studiorum Universit`adi Bologna 3European Centre for Living Technology, Venezia, Italy July 24, 2021 Abstract We approach the question \What is Consciousness?" in a new way, not as Descartes' \systematic doubt", but as how organisms find their way in their world. Finding one's way involves finding possible uses of features of the world that might be beneficial or avoiding those that might be harmful. \Possible uses of X to accom- plish Y" are “Affordances”. The number of uses of X is indefinite (or unknown), the different uses are unordered and are not deducible from one another. All biological adaptations are either affordances seized by heritable variation and selection or, far faster, by the organism acting in its world finding uses of X to accomplish Y. Based on this, we reach rather astonishing conclusions: (1) Artificial General Intelligence based on Universal Turing Machines (UTMs) is not possible, since UTMs cannot “find” novel affordances. (2) Brain-mind is not purely classical physics for no classi- cal physics system can be an analogue computer whose dynamical behavior can be isomorphic to \possible uses". (3) Brain mind must be partly quantum|supported by increasing evidence at 6.0 sigma to 7.3 Sigma. (4) Based on Heisenberg's interpre- tation of the quantum state as \Potentia" converted to \Actuals" by Measurement, a natural hypothesis is that mind actualizes Potentia. -
Black Hole Production and Graviton Emission in Models with Large Extra Dimensions
Black hole production and graviton emission in models with large extra dimensions Dissertation zur Erlangung des Doktorgrades der Naturwissenschaften vorgelegt beim Fachbereich Physik der Johann Wolfgang Goethe–Universit¨at in Frankfurt am Main von Benjamin Koch aus N¨ordlingen Frankfurt am Main 2007 (D 30) vom Fachbereich Physik der Johann Wolfgang Goethe–Universit¨at als Dissertation angenommen Dekan ........................................ Gutachter ........................................ Datum der Disputation ................................ ........ Zusammenfassung In dieser Arbeit wird die m¨ogliche Produktion von mikroskopisch kleinen Schwarzen L¨ochern und die Emission von Gravitationsstrahlung in Modellen mit großen Extra-Dimensionen untersucht. Zun¨achst werden der theoretisch-physikalische Hintergrund und die speziel- len Modelle des behandelten Themas skizziert. Anschließend wird auf die durchgefuhrten¨ Untersuchungen zur Erzeugung und zum Zerfall mikrosko- pisch kleiner Schwarzer L¨ocher in modernen Beschleunigerexperimenten ein- gegangen und die wichtigsten Ergebnisse zusammengefasst. Im Anschluss daran wird die Produktion von Gravitationsstrahlung durch Teilchenkollisio- nen diskutiert. Die daraus resultierenden analytischen Ergebnisse werden auf hochenergetische kosmische Strahlung angewandt. Die Suche nach einer einheitlichen Theorie der Naturkr¨afte Eines der großen Ziele der theoretischen Physik seit Einstein ist es, eine einheitliche und m¨oglichst einfache Theorie zu entwickeln, die alle bekannten Naturkr¨afte beschreibt. -
Scientific Report for the Year 2000
The Erwin Schr¨odinger International Boltzmanngasse 9 ESI Institute for Mathematical Physics A-1090 Wien, Austria Scientific Report for the Year 2000 Vienna, ESI-Report 2000 March 1, 2001 Supported by Federal Ministry of Education, Science, and Culture, Austria ESI–Report 2000 ERWIN SCHRODINGER¨ INTERNATIONAL INSTITUTE OF MATHEMATICAL PHYSICS, SCIENTIFIC REPORT FOR THE YEAR 2000 ESI, Boltzmanngasse 9, A-1090 Wien, Austria March 1, 2001 Honorary President: Walter Thirring, Tel. +43-1-4277-51516. President: Jakob Yngvason: +43-1-4277-51506. [email protected] Director: Peter W. Michor: +43-1-3172047-16. [email protected] Director: Klaus Schmidt: +43-1-3172047-14. [email protected] Administration: Ulrike Fischer, Eva Kissler, Ursula Sagmeister: +43-1-3172047-12, [email protected] Computer group: Andreas Cap, Gerald Teschl, Hermann Schichl. International Scientific Advisory board: Jean-Pierre Bourguignon (IHES), Giovanni Gallavotti (Roma), Krzysztof Gawedzki (IHES), Vaughan F.R. Jones (Berkeley), Viktor Kac (MIT), Elliott Lieb (Princeton), Harald Grosse (Vienna), Harald Niederreiter (Vienna), ESI preprints are available via ‘anonymous ftp’ or ‘gopher’: FTP.ESI.AC.AT and via the URL: http://www.esi.ac.at. Table of contents General remarks . 2 Winter School in Geometry and Physics . 2 Wolfgang Pauli und die Physik des 20. Jahrhunderts . 3 Summer Session Seminar Sophus Lie . 3 PROGRAMS IN 2000 . 4 Duality, String Theory, and M-theory . 4 Confinement . 5 Representation theory . 7 Algebraic Groups, Invariant Theory, and Applications . 7 Quantum Measurement and Information . 9 CONTINUATION OF PROGRAMS FROM 1999 and earlier . 10 List of Preprints in 2000 . 13 List of seminars and colloquia outside of conferences . -
Are Dark Photons Behind Biophotons? Contents
CONTENTS 1 Are dark photons behind biophotons? M. Pitk¨anen, June 19, 2019 Email: [email protected]. http://tgdtheory.com/public_html/. Recent postal address: Rinnekatu 2-4 A 8, 03620, Karkkila, Finland. Contents 1 Introduction 4 1.1 Basic Facts About Bio-Photons . .5 1.2 Basic Ideas Of TGD Based Model Of Bio-Photons . .6 1.3 Are Biophonons Also Predicted? . .8 2 Bio-Photons In TGD Universe 9 2.1 The Origin Of Bio-Photons In Standard Physics Framework . .9 2.2 The Origin Of Bio-Photons In TGD Universe . .9 2.2.1 Do dark photons give rise to biophotons? . .9 2.2.2 Has the decay of dark photons to visible photons observed in astrophysical scales? . 11 2.3 Biophotons, Dissipation, And De-Coherence . 11 2.4 What Is The Origin Of The Hyperbolic Decay Law? . 12 3 Do Dark Photons Transform To Bio-Photons? 13 3.1 Basic Ideas . 14 3.2 The Key Challenge . 15 3.3 What I Did Not Understand . 15 3.4 TGD Inspired Comments . 16 3.4.1 Do motor actions of the magnetic body induce squeezing? . 16 3.4.2 What is behind the hyperbolic decay law of the squeezed state? . 17 3.4.3 Where do bio-photons get their energy? . 18 3.4.4 Squeezing and entanglement . 18 CONTENTS 2 4 How Could Dark Photons And Phonons Relate To Consciousness? 18 4.1 What Does Bomb Testing Have To Do With Cognition And Consciousness? . 19 4.1.1 Memory recall as an interaction free measurement . 20 4.2 Why Vision And Hearing Are So Fundamental For Cognition? .