History of Physics Newsletter Volume VII, No. 3, Aug. 1998 Forum Chair
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Academician I.M. Khalatnikov International conference dedicated to the 100th anniversary of I. M. Khalatnikov Quantum Fluids, Quantum Field Theory, and Gravity PROGRAM BOOK Chernogolovka Landau Institute 2019 ББК 22.31:22.317;26.21 К 32 УДК 530.145:538.94:544.18:550.831.01 Quantum fluids, quantum field theory, and gravity: К 32 International Conference Dedicated to the 100th Anniversary of I. M. Khalatnikov Program Book. Moscow: TORUS PRESS, 2019. 60 p. ISBN 978-5-94588-262-1 On October 17, 2019, the outstanding theoretical physicist Isaak Khalatnikov will turn one hundred years old. His works are de- voted to the theoretical problems of quantum physics, superflu- idity and superconductivity, quantum electrodynamics and cos- mology. In all these areas of physics, Khalatnikov’s papers were an outstanding phenomenon and rightfully entered the treasury of science. We are proud of the fact that Khalatnikov is the founder of the Landau Institute for Theoretical Physics and its first director from 1965 till 1992. The broad scope of his scien- tific interests is manifested in the variety of areas in which the scientific staff of the Landau Institute is still working. In honour of the 100th anniversary of Isaak Khalatnikov, the Landau Insti- tute organizes the international conference. In accordance with Khalatnikov’s broad interests, the conference will be devoted to the modern frontiers of theoretical physics from the kinetics of quantum systems to cosmology. ББК 22.31:22.317;26.21 ISBN 978-5-94588-262-1 © Landau Institute, 2019 © Authors, 2019 Printed in Russian Federation All rights reserved. -
Solid State Physics 2 Lecture 4: Magnetism in Charge Insulators
Physics 7450: Solid State Physics 2 Lecture 4: Magnetism in charge insulators Leo Radzihovsky (Dated: 19 February, 2015) Abstract In these lectures, we will study magnetism in insulators. After a warm up with paramagnetism of independent spins, we will discuss the spin exchange interactions in solids, arising from the combination of Coulomb repulsion and Pauli exclusion, and leads to the Heisenberg model of magnetism. Focussing on the simplest ferromagnetic and antiferromagnetic states, we will analyze thermodynamics and correlations of low-energy excitations around these states using Holstein- Primakoff and Schwinger bosons descriptions. We will use Jordan-Wigner transformation to solve a one-dimensional spin-1/2 chain. We will discuss coherent-spin states path-integral formulation of magnetism emphasizing, the role of Berry’s phase and will analyze phase transitions using Landau’s mean-field theory of FM and AFM phases. 1 I. INTRODUCTION A. Outline • Paramagnetism • Spin exchange vs dipolar interaction • Heisenberg model and crystalline anisotropies • Hostein-Primakoff and Schwinger bosons • Jordan-Wigner transformation and XXZ chain • Coherent-spin states and Berry phases • Mean-field and Landau theory of FM and AFM states B. Background In these notes we will explore some of aspects of magnetism in charge insulators. Mag- netism is a formation and response of magnetic moments to external magnetic field H and their interaction. In general there are two sources of magnetic moment and associated mag- netization density M. One is quite intuitive, due to orbital charge current j in the material 1 Z M = r × j, 2 r much like current wire loop produces magnetic field. -
Logic and Methodology of Science: an Introduction to the Philosophy of Science 1 P
CONTENTS CONTENTS HISTORY AND PHILOSOPHY OF SCIENCE AND TECHNOLOGY History and Philosophy of Science and Technology - Volume 1 No. of Pages: 402 ISBN: 978-1-84826-323-9 (eBook) ISBN: 978-1-84826-773-2 (Print Volume) History and Philosophy of Science and Technology - Volume 2 No. of Pages: 416 ISBN: 978-1-84826-324-6 (eBook) ISBN: 978-1-84826-774-9 (Print Volume) History and Philosophy of Science and Technology - Volume 3 No. of Pages: 394 ISBN: 978-1-84826-325-3 (eBook) ISBN: 978-1-84826-775-6 (Print Volume) History and Philosophy of Science and Technology - Volume 4 No. of Pages: 412 ISBN: 978-1-84826-326-0 (eBook) ISBN: 978-1-84826-776-3 (Print Volume) For more information on e-book(s) and Print Volume(s) order, please click here Or contact : [email protected] ©Encyclopedia of Life Support Systems (EOLSS) HISTORY AND PHILOSOPHY OF SCIENCE AND TECHNOLOGY CONTENTS VOLUME I Logic and Methodology of Science: An Introduction to the Philosophy of Science 1 P. Lorenzano, National University of Quilmes (UNQ), Argentina National Council of Scientific and Technical Research (CONICET), Argentina 1. Introduction: Nature and function of the Philosophy of Science 1.1. The Metascientific Studies 1.2. The Philosophical Theorization about Science or Philosophy of Science 1.2.1. Its Nature and Relationship with Other Metascientific Disciplines 1.2.2. The Distinction between General and Special Philosophy of Science 1.2.3. The Distinction between Synchronic and Diachronic Philosophy of Science 1.2.4. A Brief History of the Philosophy of Science 2. -
Dtra-Appeal.Pdf
FEDERATION OF AMERICAN SCIENTISTS T: 202/546-3300 1717 K Street NW #209 Washington, DC 20036 www.fas.org F: 202/675-1010 [email protected] Board of Sponsors (Partial List) *Sidney Altman December 12, 2003 *Philip W. Anderson *Kenneth J. Arrow (202)454-4691 *Julius Axelrod MG Trudy H. Clark, Deputy Director *David Baltimore *Baruj Benacerraf Defense Threat Reduction Agency *Hans A. Bethe *J. Michael Bishop 8725 John J. Kingman Road *Nicolaas Bloembergen *Norman Borlaug Ft. Belvoir, VA 22060-6201 *Paul Boyer Ann Pitts Carter *Owen Chamberlain Morris Cohen RE: FOIA Appeal, Case No. 03-125 *Stanley Cohen Mildred Cohn *Leon N. Cooper *E. J. Corey *James Cronin Dear General Clark: *Johann Deisenhofer Ann Druyan *Renato Dulbecco John T. Edsall This is an appeal of the initial denial of my request under the Freedom of Paul R. Ehrlich George Field Information Act (FOIA) for a copy of an unclassified DTRA-funded report *Val L. Fitch *Jerome I. Friedman entitled "Lessons from the Anthrax Attacks: Implications for U.S. Bioterrorism John Kenneth Galbraith Preparedness," April 2002. A copy of the December 12, 2003 DTRA denial *Walter Gilbert *Donald Glaser letter is enclosed. *Sheldon L. Glashow Marvin L. Goldberger *Joseph L. Goldstein *Roger C. L. Guillemin I request that you reverse the initial decision and release the requested *Herbert A. Hauptman *Dudley R. Herschbach report, on the following grounds: *Roald Hoffmann John P. Holdren *David H. Hubel *Jerome Karle 1. The cited FOIA exemption 2 (High) is not applicable. In other words, it is *H. Gobind Khorana not true that the requested document, if disclosed, might be used to *Arthur Kornberg *Edwin G. -
2005 Annual Report American Physical Society
1 2005 Annual Report American Physical Society APS 20052 APS OFFICERS 2006 APS OFFICERS PRESIDENT: PRESIDENT: Marvin L. Cohen John J. Hopfield University of California, Berkeley Princeton University PRESIDENT ELECT: PRESIDENT ELECT: John N. Bahcall Leo P. Kadanoff Institue for Advanced Study, Princeton University of Chicago VICE PRESIDENT: VICE PRESIDENT: John J. Hopfield Arthur Bienenstock Princeton University Stanford University PAST PRESIDENT: PAST PRESIDENT: Helen R. Quinn Marvin L. Cohen Stanford University, (SLAC) University of California, Berkeley EXECUTIVE OFFICER: EXECUTIVE OFFICER: Judy R. Franz Judy R. Franz University of Alabama, Huntsville University of Alabama, Huntsville TREASURER: TREASURER: Thomas McIlrath Thomas McIlrath University of Maryland (Emeritus) University of Maryland (Emeritus) EDITOR-IN-CHIEF: EDITOR-IN-CHIEF: Martin Blume Martin Blume Brookhaven National Laboratory (Emeritus) Brookhaven National Laboratory (Emeritus) PHOTO CREDITS: Cover (l-r): 1Diffraction patterns of a GaN quantum dot particle—UCLA; Spring-8/Riken, Japan; Stanford Synchrotron Radiation Lab, SLAC & UC Davis, Phys. Rev. Lett. 95 085503 (2005) 2TESLA 9-cell 1.3 GHz SRF cavities from ACCEL Corp. in Germany for ILC. (Courtesy Fermilab Visual Media Service 3G0 detector studying strange quarks in the proton—Jefferson Lab 4Sections of a resistive magnet (Florida-Bitter magnet) from NHMFL at Talahassee LETTER FROM THE PRESIDENT APS IN 2005 3 2005 was a very special year for the physics community and the American Physical Society. Declared the World Year of Physics by the United Nations, the year provided a unique opportunity for the international physics community to reach out to the general public while celebrating the centennial of Einstein’s “miraculous year.” The year started with an international Launching Conference in Paris, France that brought together more than 500 students from around the world to interact with leading physicists. -
Tuzo Wilson in China: Tectonics, Diplomacy and Discipline During the Cold War
University of Pennsylvania ScholarlyCommons Undergraduate Humanities Forum 2012-2013: Penn Humanities Forum Undergraduate Peripheries Research Fellows 4-2013 Tuzo Wilson in China: Tectonics, Diplomacy and Discipline During the Cold War William S. Kearney University of Pennsylvania, [email protected] Follow this and additional works at: https://repository.upenn.edu/uhf_2013 Part of the Geophysics and Seismology Commons, and the Tectonics and Structure Commons Kearney, William S., "Tuzo Wilson in China: Tectonics, Diplomacy and Discipline During the Cold War" (2013). Undergraduate Humanities Forum 2012-2013: Peripheries. 8. https://repository.upenn.edu/uhf_2013/8 This paper was part of the 2012-2013 Penn Humanities Forum on Peripheries. Find out more at http://www.phf.upenn.edu/annual-topics/peripheries. This paper is posted at ScholarlyCommons. https://repository.upenn.edu/uhf_2013/8 For more information, please contact [email protected]. Tuzo Wilson in China: Tectonics, Diplomacy and Discipline During the Cold War Abstract Canadian geophysicist John Tuzo Wilson's transform fault concept was instrumental in unifying the various strands of evidence that together make up plate tectonic theory. Outside of his scientific esearr ch, Wilson was a tireless science administrator and promoter of international scientific cooperation. To that end, he travelled to China twice, once in 1958 as part of the International Geophysical Year and once again in 1971. Coming from a rare non-communist westerner in China both before and after the Cultural Revolution, Wilson's travels constitute valuable temporal and spatial cross-sections of China as that nation struggled to define itself in elationr to its past, to the Soviet Union which inspired its politics, and to the West through Wilson's new science of plate tectonics. -
Asia Pacific Physics Newsletter
Asia Pacific Physics Newsletter March 2016 Volume 5 • Number 1 worldscinet.com/appn Takaaki Kajita 2015 Physics Nobel Laureate published by Institute of Advanced Studies, Nanyang Technological University (IAS@NTU) and South East Asia Theoretical Physics Association (SEATPA) South East Asia Theoretical Physics Association Asia Pacific Physics Newsletter March 2016 • Volume 5 • Number 1 A publication of the IAS@NTU Singapore and SEATPA Asia Pacific Physics Newsletter publishes articles reporting frontier discoveries in EDITORIAL physics, research highlights, and news to facilitate interaction, collaboration and 3 cooperation among physicists in Asia Pacific physics community. PEOPLE Editor-in-Chief 4 “Observing the Distant Supernova” — Interview with Kok Khoo Phua Nobel Laureate Prof Brian Schmidt Associate Editor-in-Chief “Discovering the W and Z Bosons” — Interview with Swee Cheng Lim Nobel Laureate Prof Carlo Rubbia SEATPA Committee Christopher C Bernido Phil Chan Leong Chuan Kwek Choy Heng Lai Swee Cheng Lim Ren Bao Liu Hwee Boon Low Anh Ký Nguyên Choo Hiap Oh OPINION AND COMMENTARY Kok Khoo Phua 10 China’s Great Scientific Leap Forward: Completion of a Roh Suan Tung Preecha Yupapin planned ‘Great Collider’ would transform particle physics Hishamuddin Zainuddin Freddy Zen Editorial Team NEWS Sen Mu 12 CityU’s Institute for Advanced Study will Champion Bold New Han Sun Chi Xiong Research Initiatives Case made for 'Ninth Planet' Graphic Designers Chuan Ming Loo Erin Ong Cover Photo: "Takaaki Kajita 5171- 2015" by Bengt Nyman - Own work. -
Valery Pokrovsky Landau and Theory of Phase Transitions
Landau and Theory of Phase Transitions Valery Pokrovsky Dept. of Physics, Texas A&M University and Landau Institute for Theoretical Physics Landau Centenary, APS March Meeting, March 18, 2009. Landau phenomenon Scirus Fermi liquids – 45,000 2008 Phase transitions -- 30,000 Landau levels -- 75,500 Landau-Lifshitz Equation -- 23,000 5 Nobel prizes based on Landau works: K. Wilson; P.-G. De Gennes; A.A. Abrikosov, V.L. Ginzburg, A. Legget; K. von Klitzing; D.Tsui, H. Störmer, R.B. Loughlin. Longevity of the LL Course 1940-20.. Landau Centenary, APS March Meeting, March 18, 2009. Extremely general and simple notions: Density matrix Spontaneous symmetry breaking Fermi liquid Quasiparticles Simple and effective formalism Phase transitions Landau levels Neutron stars Unique view of entire physics Landau Centenary, APS March Meeting, March 18, 2009. Landau theory of phase transitions: History Predecessors Curie-Weiss theory of self-consistent field in ferromagnets Ehrenfest theory of higher order transitions Landau: Contribution to theory of specific heat anomaly Phys. Zs. Sowjet., 8, 113 (1935) 23 - degree of order Φ=Φ0 +abξ +ξξ + c ξ aTT=−α ( c ) Landau Centenary, APS March Meeting, March 18, 2009. 3 articles published in 1937 in ZhETF and Phys. Zs. Sowjet. Theory of phase transitions I Concept of spontaneous symmetry violation. Ordered phase is characterized by some irreducibleOnly one IR representation appears near oftransition the initial point symmetry group. 24 ⎛⎞TT− c η 22= c Φ=abaηη +; = α ⇒∝η TT − δρϕ= c ∑ i ⎜⎟ c ∑ ni ni i ⎝⎠Tc ni, Specific heat has a finite jump at transition Theory of phase transitions II 1. -
Physics Newsletter 2019
Harvard University Department of Physics Newsletter FALL 2019 A Microscopic Look At Quantum Materials it takes many physicists to solve quantum many-body problems CONTENTS Letter from the Chair ............................................................................................................1 Letter from the Chair ON THE COVER: An experiment-theory collaboration PHYSICS DEPARTMENT HIGHLIGHTS at Harvard investigates possible Letters from our Readers.. ..................................................................................................2 Dear friends of Harvard Physics, While Prof. Prentiss has been in our department since 1991 (she was theories for how quantum spins (red the second female physicist to be awarded tenure at Harvard), our and blue spheres) in a periodic The sixth issue of our annual Faculty Promotion ............................................................................................................... 3 next article features a faculty member who joined our department potential landscape interact with one Physics Newsletter is here! In Memoriam ........................................................................................................................ 4 only two years ago, Professor Roxanne Guenette (pp. 22-26). another to give rise to intriguing and Please peruse it to find out about potentially useful emergent Current Progress in Mathematical Physics: the comings and goings in our On page 27, Clare Ploucha offers a brief introduction to the Harvard phenomena. This is an artist’s -
Jewish Scientists, Jewish Ethics and the Making of the Atomic Bomb
8 Jewish Scientists, Jewish Ethics and the Making of the Atomic Bomb MERON MEDZINI n his book The Jews and the Japanese: The Successful Outsiders, Ben-Ami IShillony devoted a chapter to the Jewish scientists who played a central role in the development of nuclear physics and later in the construction and testing of the fi rst atomic bomb. He correctly traced the well-known facts that among the leading nuclear physics scientists, there was an inordinately large number of Jews (Shillony 1992: 190–3). Many of them were German, Hungarian, Polish, Austrian and even Italian Jews. Due to the rise of virulent anti-Semitism in Germany, especially after the Nazi takeover of that country in 1933, most of the German-Jewish scientists found themselves unemployed, with no laboratory facilities or even citi- zenship, and had to seek refuge in other European countries. Eventually, many of them settled in the United States. A similar fate awaited Jewish scientists in other central European countries that came under German occupation, such as Austria, or German infl uence as in the case of Hungary. Within a short time, many of these scientists who found refuge in America were highly instrumental in the exceedingly elabo- rate and complex research and work that eventually culminated in the construction of the atomic bomb at various research centres and, since 1943, at the Los Alamos site. In this facility there were a large number of Jews occupying the highest positions. Of the heads of sections in charge of the Manhattan Project, at least eight were Jewish, led by the man in charge of the operation, J. -
Unit VI Superconductivity JIT Nashik Contents
Unit VI Superconductivity JIT Nashik Contents 1 Superconductivity 1 1.1 Classification ............................................. 1 1.2 Elementary properties of superconductors ............................... 2 1.2.1 Zero electrical DC resistance ................................. 2 1.2.2 Superconducting phase transition ............................... 3 1.2.3 Meissner effect ........................................ 3 1.2.4 London moment ....................................... 4 1.3 History of superconductivity ...................................... 4 1.3.1 London theory ........................................ 5 1.3.2 Conventional theories (1950s) ................................ 5 1.3.3 Further history ........................................ 5 1.4 High-temperature superconductivity .................................. 6 1.5 Applications .............................................. 6 1.6 Nobel Prizes for superconductivity .................................. 7 1.7 See also ................................................ 7 1.8 References ............................................... 8 1.9 Further reading ............................................ 10 1.10 External links ............................................. 10 2 Meissner effect 11 2.1 Explanation .............................................. 11 2.2 Perfect diamagnetism ......................................... 12 2.3 Consequences ............................................. 12 2.4 Paradigm for the Higgs mechanism .................................. 12 2.5 See also ............................................... -
Faces & Places
CERN Courier September 2011 Faces & Places F a c i l i t i e s CERN AMS-02 control centre begins operations A month after the successful installation of the Alpha Magnetic Spectrometer (AMS-02) on the International Space Station (ISS), the AMS Payload Operation and Control Centre (POCC) began operation from a specially constructed building on CERN’s Prévessin site on 24 June. The POCC will control AMS-02 for its entire lifetime. Data-taking started soon after AMS-02 was installed on the ISS on 19 May, when the spectrometer began detecting cosmic rays at a rate of about 50 million a day. With the detector operational, the AMS team was able Charles Bolden, centre, with Sam Ting, Bolden together with Claude Nicollier, left, to transfer the POCC successfully from the right, and Saul Gonzalez, at the AMS POCC. Switzerland’s first astronaut. Johnson Space Center in Houston to the new building at CERN. in space, another ensures that data are the last flight of the NASA space shuttle The experiment is controlled from the properly processed by a cluster of computers Endeavour (CERN Courier July/August POCC round the clock. Each subsystem has at CERN, before distribution to regional 2011 p23). While at CERN, Bolden, who a dedicated monitor desk and each is devoted centres for specific, detector-related analysis had piloted the space shuttle Discovery to data flow and to the command function – and calibration. into orbit with the Hubble telescope in the the only position that can issue commands The POCC started operation at CERN payload bay, had a chance encounter with to be uploaded to AMS-02 from NASA’s a day after a visit by Charles Bolden, a an old acquaintance, Claude Nicollier, Marshall Space Flight Center in Alabama.