scholarly journals Telegdi Bálint, a virtuóz kísérleti fizikus. Centenáriumi megemlékezés • Valentine Telegdi, Virtuoso Experimental Physicist. A Centenary Commemoration

2022 ◽  
Author(s):  
Magdolna Hargittai ◽  
István Hargittai
2015 ◽  
Vol 1 (1) ◽  
Author(s):  
David J Reilly

AbstractSpanning a range of hardware platforms, the building-blocks of quantum processors are today sufficiently advanced to begin work on scaling-up these systems into complex quantum machines. A key subsystem of all quantum machinery is the interface between the isolated qubits that encode quantum information and the classical control and readout technology needed to operate them. As few-qubit devices are combined to construct larger, fault-tolerant quantum systems in the near future, the quantum-classical interface will pose new challenges that increasingly require approaches from the engineering disciplines in combination with continued fundamental advances in physics, materials and mathematics. This review describes the subsystems comprising the quantum-classical interface from the viewpoint of an engineer, experimental physicist or student wanting to enter the field of solid-state quantum information technology. The fundamental signalling operations of readout and control are reviewed for a variety of qubit platforms, including spin systems, superconducting implementations and future devices based on topological degrees-of-freedom. New engineering opportunities for technology development at the boundary between qubits and their control hardware are identified, transversing electronics to cryogenics.


Other branches of solid state physics had other leaders, and Mott himself had other interests, but in the study of crystal defects and the so-called ‘structure-sensitive’ properties of solids, Nevill Mott was the acknowledged leader. I first met him in 1937, when I wrote my degree examinations in physics, and Mott was the external examiner. Mott must have had reports on my promise as an experimental physicist from T. C. Kelley, for he advised me to spend a year reading mathematics and then to join him in Bristol as a theoretician. This I did, and he set me the problem of devising the theory of magnetic coercivity, the mechanism being the pinning of Bloch walls by lattice defects. I made some progress with this, and then the black day came. As Mott has already described, one of the characteristics of the Bristol school of that time was an almost total ignorance of the German language. As I slowly ploughed my way through a German conference report, I came across the theory of coercivity on much the same lines as mine, but far more fully developed.


2009 ◽  
Vol 55 ◽  
pp. 291-304
Author(s):  
Laurie M. Brown

Valentine Telegdi was an outstandingly original experimental physicist who contributed greatly to our understanding of the weak and electromagnetic interactions of elementary particles. Outspoken and colourful in expression, Telegdi (usually called ‘Val’) had the reputation of being a ‘conscience of physics’, known for his incisive and sometimes acerbic wit. In this respect he was reminiscent of Wolfgang Pauli, one of his teachers, whom he greatly admired. However, Val could be warm and caring to friends, professional associates and students. After receiving his doctorate from the Swiss Federal Institute of Technology (ETH) in Zurich in 1950, he began his academic career at the University of Chicago in 1951, and his reputation grew rapidly. In 1968 he was elected to the National Academy of Sciences. In 1972 the University of Chicago appointed him as the first Enrico Fermi Distinguished Service Professor of Physics.


2018 ◽  
Vol 65 ◽  
pp. 47-70
Author(s):  
Alan Watson

James (Jim) Cronin had two outstanding careers. The first, in particle physics, included the discovery of CP violation for which he and Val Fitch were awarded the Nobel Prize in 1980. During the second, in cosmic rays, he played a major role in raising the profile of that field, particularly through his leadership in the creation of the Pierre Auger Observatory, the largest cosmic-ray detector ever constructed. He will be remembered for his incisive mind, his modest style, his internationalism and his encouragement of young scientists, as well as for his brilliance as an experimental physicist and data analyst.


1962 ◽  
Vol 8 ◽  
pp. 26-40 ◽  

On 24 October 1961 a service was held at the Memorial Church in Harvard Yard to honour the memory of one whose entire professional career was spent at the University, who was for nearly half a century a member of the faculty and who, in a wider sphere, achieved distinction as an experimental physicist, a philosopher and a bold and original thinker. The addresses given on this occasion by several of his colleagues and friends depict a man of unusual stature and of many remarkable gifts. Percy Williams Bridgman, the only son of Raymond Landon Bridgman and Ann Maria Williams, was born in Cambridge, Massachusetts, on 21 April 1882. His father was a journalist by profession, a social and political writer and a lively and ready debater. The family circle was a united one, providing that stable and secure background against which children find freedom to develop according to inclination and ability. In his schooldays, which were spent at Newton, Percy appears to have been an average boy, somewhat shy, keenly interested in sports and games and a good chess player; but it was also remarked that he had, without any need for close application, little or no difficulty in keeping abreast of his school work. He entered Harvard College in 1900, graduated with an A.B. Summa cum laude in 1904 and obtained his A.M. the following year. He had from the first shown ability as an experimentalist, a real artistry in the handling of machine tools and in glass manipulation and a great capacity for intensive work. His interests lay primarily in the field of physics and after graduation he required little persuasion to stay on at College to undertake research in the Jefferson Physical Laboratory. His imagination had early been aroused by the classical work of the great French physicists Cailletet and Amagat on the properties of fluids at high pressures and he resolved to extend their researches into those higher ranges of pressure at which new phenomena might be expected to occur.


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