Nobel Prizes in Physics Closely Connected with the Physics of Solids
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Dc Josephson Current Between an Isotropic and a D-Wave Or Extended S-Wave Partially Gapped Charge Density Wave Superconductor
Chapter 12 dc Josephson Current Between an Isotropic and a d-Wave or Extended s-Wave Partially Gapped Charge Density Wave Superconductor Alexander M. Gabovich, Suan Li Mai, Henryk Szymczak and Alexander I. Voitenko Additional information is available at the end of the chapter http://dx.doi.org/10.5772/46073 1. Introduction The discovery and further development of superconductivity is extremely interesting because of its pragmatic (practical) and purely academic reasons. At the same time, the superconductivity science is very remarkable as an important object for the study in the framework of the history and methodology of science, since all the details are well documented and well-known to the community because of numerous interviews by participants including main heroes of the research and the fierce race for higher critical temperatures of the superconducting transition, Tc. Moreover, the whole science has well-documented dates, starting from the epoch-making discovery of the superconducting transition by Heike Kamerlingh-Onnes in 1911 [1–7], although minor details of this and, unfortunately, certain subsequent discoveries in the field were obscured [8–11]. As an illustrative example of a senseless dispute on the priority, one can mention the controversy between the recognition of Bardeen-Cooper-Schrieffer (BCS) [12] and Bogoliubov [13] theories. If one looks beyond superconductivity, it is easy to find quite a number of controversies in different fields of science [14, 15]. Recent attempts [16–18] to contest and discredit the Nobel Committee decision on the discovery of graphene by Andre Geim and Kostya Novoselov [19, 20] are very typical. The reasons of a widespread disagreement concerning various scientific discoveries consist in a continuity of scientific research process and a tense competition between different groups, as happened at liquefying helium and other cryogenic gases [9, 21–24] and was reproduced in the course of studying graphite films [25, 26]. -
Famous Physicists Himansu Sekhar Fatesingh
Fun Quiz FAMOUS PHYSICISTS HIMANSU SEKHAR FATESINGH 1. The first woman to 6. He first succeeded in receive the Nobel Prize in producing the nuclear physics was chain reaction. a. Maria G. Mayer a. Otto Hahn b. Irene Curie b. Fritz Strassmann c. Marie Curie c. Robert Oppenheimer d. Lise Meitner d. Enrico Fermi 2. Who first suggested electron 7. The credit for discovering shells around the nucleus? electron microscope is often a. Ernest Rutherford attributed to b. Neils Bohr a. H. Germer c. Erwin Schrödinger b. Ernst Ruska d. Wolfgang Pauli c. George P. Thomson d. Clinton J. Davisson 8. The wave theory of light was 3. He first measured negative first proposed by charge on an electron. a. Christiaan Huygens a. J. J. Thomson b. Isaac Newton b. Clinton Davisson c. Hermann Helmholtz c. Louis de Broglie d. Augustin Fresnel d. Robert A. Millikan 9. He was the first scientist 4. The existence of quarks was to find proof of Einstein’s first suggested by theory of relativity a. Max Planck a. Edwin Hubble b. Sheldon Glasgow b. George Gamow c. Murray Gell-Mann c. S. Chandrasekhar d. Albert Einstein d. Arthur Eddington 10. The credit for development of the cyclotron 5. The phenomenon of goes to: superconductivity was a. Carl Anderson b. Donald Glaser discovered by c. Ernest O. Lawrence d. Charles Wilson a. Heike Kamerlingh Onnes b. Alex Muller c. Brian D. Josephson 11. Who first proposed the use of absolute scale d. John Bardeen of Temperature? a. Anders Celsius b. Lord Kelvin c. Rudolf Clausius d. -
Von Richthofen, Einstein and the AGA Estimating Achievement from Fame
Von Richthofen, Einstein and the AGA Estimating achievement from fame Every schoolboy has heard of Einstein; fewer have heard of Antoine Becquerel; almost nobody has heard of Nils Dalén. Yet they all won Nobel Prizes for Physics. Can we gauge a scientist’s achievements by his or her fame? If so, how? And how do fighter pilots help? Mikhail Simkin and Vwani Roychowdhury look for the linkages. “It was a famous victory.” We instinctively rank the had published. However, in 2001–2002 popular French achievements of great men and women by how famous TV presenters Igor and Grichka Bogdanoff published they are. But is instinct enough? And how exactly does a great man’s fame relate to the greatness of his achieve- ment? Some achievements are easy to quantify. Such is the case with fighter pilots of the First World War. Their achievements can be easily measured and ranked, in terms of their victories – the number of enemy planes they shot down. These aces achieved varying degrees of fame, which have lasted down to the internet age. A few years ago we compared1 the fame of First World War fighter pilot aces (measured in Google hits) with their achievement (measured in victories); and we found that We can estimate fame grows exponentially with achievement. fame from Google; Is the same true in other areas of excellence? Bagrow et al. have studied the relationship between can this tell us 2 achievement and fame for physicists . The relationship Manfred von Richthofen (in cockpit) with members of his so- about actual they found was linear. -
A Brief History of Nuclear Astrophysics
A BRIEF HISTORY OF NUCLEAR ASTROPHYSICS PART I THE ENERGY OF THE SUN AND STARS Nikos Prantzos Institut d’Astrophysique de Paris Stellar Origin of Energy the Elements Nuclear Astrophysics Astronomy Nuclear Physics Thermodynamics: the energy of the Sun and the age of the Earth 1847 : Robert Julius von Mayer Sun heated by fall of meteors 1854 : Hermann von Helmholtz Gravitational energy of Kant’s contracting protosolar nebula of gas and dust turns into kinetic energy Timescale ~ EGrav/LSun ~ 30 My 1850s : William Thompson (Lord Kelvin) Sun heated at formation from meteorite fall, now « an incadescent liquid mass » cooling Age 10 – 100 My 1859: Charles Darwin Origin of species : Rate of erosion of the Weald valley is 1 inch/century or 22 miles wild (X 1100 feet high) in 300 My Such large Earth ages also required by geologists, like Charles Lyell A gaseous, contracting and heating Sun 푀⊙ Mean solar density : ~1.35 g/cc Sun liquid Incompressible = 4 3 푅 3 ⊙ 1870s: J. Homer Lane ; 1880s :August Ritter : Sun gaseous Compressible As it shrinks, it releases gravitational energy AND it gets hotter Earth Mayer – Kelvin - Helmholtz Helmholtz - Ritter A gaseous, contracting and heating Sun 푀⊙ Mean solar density : ~1.35 g/cc Sun liquid Incompressible = 4 3 푅 3 ⊙ 1870s: J. Homer Lane ; 1880s :August Ritter : Sun gaseous Compressible As it shrinks, it releases gravitational energy AND it gets hotter Earth Mayer – Kelvin - Helmholtz Helmholtz - Ritter A gaseous, contracting and heating Sun 푀⊙ Mean solar density : ~1.35 g/cc Sun liquid Incompressible = 4 3 푅 3 ⊙ 1870s: J. -
Edward Mills Purcell (1912–1997)
ARTICLE-IN-A-BOX Edward Mills Purcell (1912–1997) Edward Purcell grew up in a small town in the state of Illinois, USA. The telephone equipment which his father worked with professionally was an early inspiration. His first degree was thus in electrical engineering, from Purdue University in 1933. But it was in this period that he realized his true calling – physics. After a year in Germany – almost mandatory then for a young American interested in physics! – he enrolled in Harvard for a physics degree. His thesis quickly led to working on the Harvard cyclotron, building a feedback system to keep the radio frequency tuned to the right value for maximum acceleration. The story of how the Manhattan project brought together many of the best physicists to build the atom bomb has been told many times. Not so well-known but equally fascinating is the story of radar, first in Britain and then in the US. The MIT radiation laboratory was charged with developing better and better radar for use against enemy aircraft, which meant going to shorter and shorter wavelengths and detecting progressively weaker signals. This seems to have been a crucial formative period in Purcell’s life. His coauthors on the magnetic resonance paper, Torrey and Pound, were both from this lab. I I Rabi, the physicist who won the 1944 Nobel Prize for measuring nuclear magnetic moments by resonance methods in molecular beams, was the head of the lab and a major influence on Purcell. Interestingly, Felix Bloch (see article on p.956 in this issue) was at the nearby Radio Research lab but it appears that the two did not interact much. -
Ernest Rutherford and the Accelerator: “A Million Volts in a Soapbox”
Ernest Rutherford and the Accelerator: “A Million Volts in a Soapbox” AAPT 2011 Winter Meeting Jacksonville, FL January 10, 2011 H. Frederick Dylla American Institute of Physics Steven T. Corneliussen Jefferson Lab Outline • Rutherford's call for inventing accelerators ("million volts in a soap box") • Newton, Franklin and Jefferson: Notable prefiguring of Rutherford's call • Rutherfords's discovery: The atomic nucleus and a new experimental method (scattering) • A century of particle accelerators AAPT Winter Meeting January 10, 2011 Rutherford’s call for inventing accelerators 1911 – Rutherford discovered the atom’s nucleus • Revolutionized study of the submicroscopic realm • Established method of making inferences from particle scattering 1927 – Anniversary Address of the President of the Royal Society • Expressed a long-standing “ambition to have available for study a copious supply of atoms and electrons which have an individual energy far transcending that of the alpha and beta particles” available from natural sources so as to “open up an extraordinarily interesting field of investigation.” AAPT Winter Meeting January 10, 2011 Rutherford’s wish: “A million volts in a soapbox” Spurred the invention of the particle accelerator, leading to: • Rich fundamental understanding of matter • Rich understanding of astrophysical phenomena • Extraordinary range of particle-accelerator technologies and applications AAPT Winter Meeting January 10, 2011 From Newton, Jefferson & Franklin to Rutherford’s call for inventing accelerators Isaac Newton, 1717, foreseeing something like quarks and the nuclear strong force: “There are agents in Nature able to make the particles of bodies stick together by very strong attractions. And it is the business of Experimental Philosophy to find them out. -
The Power of Light
David N Payne Dedicated to: Guglielmo Marconi and Charles Kao Director ORC University of Southampton 1909 2009 Nobel Laureates in Physics Wireless and optical fibres The power of light GPS systems, synchronous data networks, cell phone telephony, time stamping financial trades Large scale interferometers for telescopes Optical gyroscopes Data centres/computer interconnects Financial traders You can’t beat vacuum for loss, speed of light or stability! The Very Large Telescope Interferometer (VLTI) on Paranal Mountain Data Centre Interconnection Information flow/unit area and latency is key in supercomputers and data centres 20,000 km of fibre per data centre in Facebook alone! Vacuum transit time is 30% lower High-performance: applications in inertial guidance, navigation, platform stabilization, GPS flywheeling, etc. Lower-performance: Consumer / industrial applications in Performancemotion control, industrial limited processing, byconsumer glass electronics, core etc. Periodic lattice of holes Hollow air core Advantage: Typically less than 0.1% optical power in cladding. Ultra-low nonlinearity, lower loss? Vacuum fibre technology Fibres that largely ignore the materials from which they are made Power in glass < 0.01% low nonlinearity Transmission loss < 0.01 dB/m As you wouldLow Latencyexpect (30% from lower) vacuum! Phase insensitive Radiation hard IR transmitting The new anti-resonant fibre 22.3 µm 40.2 µm Width = 359.6 nm 20μm OFC 2016, Los Angeles, PDPTh5A.3 Low Latency data communications • Data transmission at 99.7% the speed of light in vacuum • ‘Only’ 69.4% in a conventional fibre Latency savings (vs conventional fibres): 1m 1.54 ns 100m 154 ns 1km 1.54 µs 100km 154 µs Phase Insensitive Fibres The phase of a signal in a fibre changes with temperature owing to: • Change in refractive index • Change in fibre length • Vacuum fibre temperature sensitivity 2 ps/km/K • 18.5 times smaller than conventional fibres Dr Radan Slavik Slavik et al., Scientific Reports 2015. -
Twenty Five Hundred Years of Small Science What’S Next?
Twenty Five Hundred Years of Small Science What’s Next? Lloyd Whitman Assistant Director for Nanotechnology White House Office of Science and Technology Policy Workshop on Integrated Nanosystems for Atomically Precise Manufacturing Berkeley, CA, August 5, 2015 Democritus (ca. 460 – 370 BC) Everything is composed of “atoms” Atomos (ἄτομος): that which can not be cut www.phil-fak.uni- duesseldorf.de/philo/galerie/antike/ demokrit.html Quantum Mechanics (1920s) Max Planck 1918* Albert Einstein 1921 Niels Bohr 1922 Louis de Broglie 1929 Max Born 1954 Paul Dirac 1933 On the Theory of Quanta Louis-Victor de Broglie Werner Heisenberg 1932 Wolfgang Pauli 1945 Erwin Schrödinger 1933 *Nobel Prizes in Physics https://tel.archives-ouvertes.fr/tel- 00006807 Ernst Ruska (1906 – 1988) Electron Microscopy Magnifying higher than the light microscope - 1933 Nobel Prize in Physics 1986 www.nobelprize.org/nobel_prizes/physics/laureates /1986/ruska-lecture.pdf Richard Feynman (1918-1988) There's Plenty of Room at the Bottom, An Invitation to Enter a New Field of Physics What would happen if we could arrange the atoms one by one the way we want them…? December 29, 1959 richard-feynman.net Heinrich Rohrer (1933 – 2013) Gerd Binnig Atomic resolution Scanning Tunneling Microscopy - 1981 1983 I could not stop looking at the images. It was like entering a new world. Gerd Binnig, Nobel lecture Binnig, et al., PRL 50, 120 (1983) Nobel Prize in Physics 1986 C60: Buckminsterfullerene Kroto, Heath, O‘Brien, Curl and September 1985 Smalley - 1985 …a remarkably stable cluster consisting of 60 carbon atoms…a truncated icosahedron. Nature 318, 162 (1985) http://www.acs.org/content/acs/en/education/whatis chemistry/landmarks/fullerenes.html Nobel Prize in Chemistry 1996 Curl, Kroto, and Smalley Positioning Single Atoms with a Scanning Tunnelling Microscope Eigler and Schweizer - 1990 …fabricate rudimentary structures of our own design, atom by atom. -
1 / 3 Anwendungen Von Festkörperphysik 1 / 4
1 / 3 Anwendungen von Festkörperphysik Elektronik/Optoelektronik 1 / 4 Anwendungen von Festkörperphysik Organische (Opto-)elektronik Selbstreinigende Oberflächen Energietechnologie 2 1 / 5 Anwendungen von Festkörperphysik „intelligente“ Materialien Schaltbare Molekülschichten Magnetoelektrische Sensoren „Brain-Maschine-Interface“ 1 / 6 Nobelpreise für Physik zu festkörperphysikalischen Themen 1913 Heike Kamerlingh Onnes 1914 Max von Laue 1915 William Henry Bragg, William Lawrence Bragg 1920 Charles Edouard Guillaume 1921 Albert Einstein 1923 Robert Andrews Millikan Details siehe 1924 Karl Manne Siegbahn 1926 Jean Baptiste Perrin http://almaz.com/nobel/ 1937 Clinton Davisson, George Paget physics/physics.html 1946 Percy W. Bridgman 1956 William B. Shockley, John Bardeen und Walter H. Brattain 1961 Rudolf Mößbauer 1962 Lev Landau 1971 Louis Néel 1972 John Bardeen, Leon Neil Cooper, Robert Schrieffer 1973 Leo Esaki, Ivar Giaever, Brian Davon Josephson 1977 Philip W. Anderson, Nevill F. Mott, John H. van Vleck 1978 Pjotr Kapiza 1982 Kenneth G. Wilson 1985 Klaus von Klitzing 1986 Ernst Ruska, Gerd Binnig, Heinrich Rohrer 1987 Johannes Georg Bednorz, Karl Alex Müller 1991 Pierre-Gilles de Gennes 1994 Bertram N. Brockhouse, Clifford Glenwood Shull 1996 David M. Lee, Douglas D. Osheroff, Robert C. Richardson 1998 Robert B. Laughlin, Horst Ludwig Störmer, Daniel Chee Tsui 2000 Schores Alfjorow, Herbert Kroemer, Jack S. Kilby 2001 Eric A. Cornell, Wolfgang Ketterle, Carl E. Wieman 2003 Alexei Abrikossow, Witali Ginsburg, Anthony James Leggett 2007 -
Einstein and the Early Theory of Superconductivity, 1919–1922
Einstein and the Early Theory of Superconductivity, 1919–1922 Tilman Sauer Einstein Papers Project California Institute of Technology 20-7 Pasadena, CA 91125, USA [email protected] Abstract Einstein’s early thoughts about superconductivity are discussed as a case study of how theoretical physics reacts to experimental find- ings that are incompatible with established theoretical notions. One such notion that is discussed is the model of electric conductivity implied by Drude’s electron theory of metals, and the derivation of the Wiedemann-Franz law within this framework. After summarizing the experimental knowledge on superconductivity around 1920, the topic is then discussed both on a phenomenological level in terms of implications of Maxwell’s equations for the case of infinite conduc- tivity, and on a microscopic level in terms of suggested models for superconductive charge transport. Analyzing Einstein’s manuscripts and correspondence as well as his own 1922 paper on the subject, it is shown that Einstein had a sustained interest in superconductivity and was well informed about the phenomenon. It is argued that his appointment as special professor in Leiden in 1920 was motivated to a considerable extent by his perception as a leading theoretician of quantum theory and condensed matter physics and the hope that he would contribute to the theoretical direction of the experiments done at Kamerlingh Onnes’ cryogenic laboratory. Einstein tried to live up to these expectations by proposing at least three experiments on the arXiv:physics/0612159v1 [physics.hist-ph] 15 Dec 2006 phenomenon, one of which was carried out twice in Leiden. Com- pared to other theoretical proposals at the time, the prominent role of quantum concepts was characteristic of Einstein’s understanding of the phenomenon. -
De Nobelprijzen Komen Eraan!
De Nobelprijzen komen eraan! De Nobelprijzen komen eraan! In de loop van volgende week worden de Nobelprijswinnaars van dit jaar aangekondigd. Daarna weten we wie in december deze felbegeerde prijzen in ontvangst mogen gaan nemen. De Nobelprijzen zijn wellicht de meest prestigieuze en bekende academische onderscheidingen ter wereld, maar waarom eigenlijk? Hoe zijn de prijzen ontstaan, en wie was hun grondlegger, Alfred Nobel? Afbeelding 1. Alfred Nobel.Alfred Nobel (1833-1896) was de grondlegger van de Nobelprijzen. Volgende week is de jaarlijkse aankondiging van de prijswinnaard. Alfred Nobel Alfred Nobel was een belangrijke negentiende-eeuwse Zweedse scheikundige en uitvinder. Hij werd geboren in Stockholm in 1833 in een gezin met acht kinderen. Zijn vader, Immanuel Nobel, was een werktuigkundige en uitvinder die succesvol was met het maken van wapens en stoommotoren. Immanuel wou dat zijn zonen zijn bedrijf zouden overnemen en stuurde Alfred daarom op een twee jaar durende reis naar onder andere Duitsland, Frankrijk en de Verenigde Staten, om te leren over chemische werktuigbouwkunde. In Parijs ontmoette bron: https://www.quantumuniverse.nl/de-nobelprijzen-komen-eraan Pagina 1 van 5 De Nobelprijzen komen eraan! Alfred de Italiaanse scheikundige Ascanio Sobrero, die drie jaar eerder het explosief nitroglycerine had ontdekt. Nitroglycerine had een veel grotere explosieve kracht dan het buskruit, maar was ook veel gevaarlijker om te gebruiken omdat het instabiel is. Alfred raakte geinteresseerd in nitroglycerine en hoe het gebruikt kon worden voor commerciele doeleinden, en ging daarom werken aan de stabiliteit en veiligheid van de stof. Een makkelijk project was dit niet, en meerdere malen ging het flink mis. -
Facts and Figures 2013
Facts and Figures 201 3 Contents The University 2 World ranking 4 Academic pedigree 6 Areas of impact 8 Research power 10 Spin-outs 12 Income 14 Students 16 Graduate careers 18 Alumni 20 Faculties and Schools 22 Staff 24 Estates investment 26 Visitor attractions 28 Widening participation 30 At a glance 32 1 The University of Manchester Our Strategic Vision 2020 states our mission: “By 2020, The University of Manchester will be one of the top 25 research universities in the world, where all students enjoy a rewarding educational and wider experience; known worldwide as a place where the highest academic values and educational innovation are cherished; where research prospers and makes a real difference; and where the fruits of scholarship resonate throughout society.” Our core goals 1 World-class research 2 Outstanding learning and student experience 3 Social responsibility 2 3 World ranking The quality of our teaching and the impact of our research are the cornerstones of our success. 5 The Shanghai Jiao Tong University UK Academic Ranking of World ranking Universities assesses the best teaching and research universities, and in 2012 we were ranked 40th in the world. 7 World European UK European Year Ranking Ranking Ranking ranking 2012 40 7 5 2010 44 9 5 2005 53 12 6 2004* 78* 24* 9* 40 Source: 2012 Shanghai Jiao Tong University World Academic Ranking of World Universities ranking *2004 ranking refers to the Victoria University of Manchester prior to the merger with UMIST. 4 5 Academic pedigree Nobel laureates 1900 JJ Thomson , Physics (1906) We attract the highest calibre researchers and Ernest Rutherford , Chemistry (1908) teachers, boasting 25 Nobel Prize winners among 1910 William Lawrence Bragg , Physics (1915) current and former staff and students.