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Joshua Zak
Joshua Zak (born 1929) is an Israeli theoretical physicist and writer known for the Zak transform, Zak phase and the Magnetic Translation Group. He received the 2022 Israel prize and 2014 Wigner medal. Most cited publications *Zak J. Berry's phase for energy bands in solids. ''Physical Review Letters''. 1989 Jun 5;62(23):2747* J. Zak. Magnetic translation group. ''Physical Review''. 1964 Jun 15;134(6A):A1602. *Zak J, Moog ER, Liu C, Bader SD. Magneto-optics of multilayers with arbitrary magnetization directions. ''Physical Review B.'' 1991 Mar 15;43(8):6423. *Zak J. Finite translations in solid-state physics. ''Physical Review Letters''. 1967 Dec 11;19(24):1385. Honors and awards * Wigner Medal 2014 * Israel prize, for his achievements in physics, in 2022.phys.technion.ac.il/en/about/news/prof-emeritus-joshua-zak-will-be-awarded-the-2022-israel-prize-in-the-field-of-physics-and-chemistry-research * The Brown-Zak fermion and the Zak transform In mathematics, the Zak transfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theoretical Physicist
Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena. This is in contrast to experimental physics, which uses experimental tools to probe these phenomena. The advancement of science generally depends on the interplay between experimental studies and theory. In some cases, theoretical physics adheres to standards of mathematical rigour while giving little weight to experiments and observations.There is some debate as to whether or not theoretical physics uses mathematics to build intuition and illustrativeness to extract physical insight (especially when normal experience fails), rather than as a tool in formalizing theories. This links to the question of it using mathematics in a less formally rigorous, and more intuitive or heuristic way than, say, mathematical physics. For example, while developing special relativity, Albert Einstein was concerned with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zak Transform
In mathematics, the Zak transform (also known as the Gelfand mapping) is a certain operation which takes as input a function of one variable and produces as output a function of two variables. The output function is called the Zak transform of the input function. The transform is defined as an infinite series in which each term is a product of a dilation of a translation by an integer of the function and an exponential function. In applications of Zak transform to signal processing the input function represents a signal and the transform will be a mixed time–frequency representation of the signal. The signal may be real valued or complex-valued, defined on a continuous set (for example, the real numbers) or a discrete set (for example, the integers or a finite subset of integers). The Zak transform is a generalization of the discrete Fourier transform. The Zak transform had been discovered by several people in different fields and was called by different names. It was called the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zak Phase
Zak may refer to: People * Zak (surname), a surname of Russian origin * Żak, a Polish surname * Žák, a Czech surname * Zak (given name) Fictional characters * Zak Adama, in the ''Battlestar Galactica'' franchise * Zak Dingle, in UK TV ''Emmerdale'' * '' Zak McKracken and the Alien Mindbenders'' video game * Zak Ramsey, in UK TV ''Hollyoaks'' * Zak Silver, in the comic ''El Muerto: The Aztec Zombie'' Other uses * Zak, Iran, a village in Razavi Khorasan Province * LWD Żak, a 1940s Polish aircraft * FK ŽAK Kikinda, a football club in Serbia * ŽAK Subotica, a football club 1921–1945, Yugoslavia * ZAK a human gene * ISO 639-3 code for the Zanaki language of Tanzania See also * Zac, a given name * Zach or Zack (other) Zack or Zach may refer to: People * Zach (surname), various people * Zack (surname), various people * Zack (personal name), lists of people and fictional characters named Zack, Zach, Zac, Zak or Zakk * Záh (gens) or Zách, a ''gens'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Translation Group
Magnetism is the class of physical attributes that are mediated by a magnetic field, which refers to the capacity to induce attractive and repulsive phenomena in other entities. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. Magnetism is one aspect of the combined phenomena of electromagnetism. The most familiar effects occur in ferromagnetic materials, which are strongly attracted by magnetic fields and can be magnetized to become permanent magnets, producing magnetic fields themselves. Demagnetizing a magnet is also possible. Only a few substances are ferromagnetic; the most common ones are iron, cobalt, and nickel and their alloys. The rare-earth metals neodymium and samarium are less common examples. The prefix ' refers to iron because permanent magnetism was first observed in lodestone, a form of natural iron ore called magnetite, Fe3O4. All substances exhibit som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Israel Prize
The Israel Prize ( he, פרס ישראל; ''pras israél'') is an award bestowed by the State of Israel, and regarded as the state's highest cultural honor. History The Israel Prize is awarded annually, on Israeli Independence Day, in a state ceremony in Jerusalem, in the presence of the President, the Prime Minister, the Speaker of the Knesset (Israel's legislature), and the Supreme Court President. The prize was established in 1953 at the initiative of the Minister of Education Ben-Zion Dinor, who himself went on to win the prize in 1958 and 1973. Awarding the prize The prize is awarded in the following four areas, with the precise subfields changing from year to year in a cycle of 4 to 7 years, except for the last area, which is awarded annually: * the humanities, social sciences, and Jewish studies * life and exact sciences * culture, arts, communication and sports * lifetime achievement and exceptional contribution to the nation (since 1972) The recipients of the prize are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wigner Medal
The International Colloquium on Group Theoretical Methods in Physics is an academic conference devoted to applications of group theory to physics. It was founded in 1972 by Henri Bacry and Aloysio Janner. It hosts a colloquium every two years. The ICGTMP is led by a standing committee, which helps select winners for the two major awards presented at the conference: the Wigner Medal and the Weyl Prize. Wigner Medal The Wigner Medal is an award designed "to recognize outstanding contributions to the understanding of physics through Group Theory". The Wigner Medal is administered by The Group Theory and Fundamental Physics Foundation, a publicly supported organization. Donations are tax-deductible as provided pursuant to the provisions of Section 170 of the Internal Revenue Code, a federal code of the United States. The award was first presented in 1978 to Eugene Wigner, and was first awarded at the Integrative Conference on Group Theory and Mathematical Physics. List of conferen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Review Letters
''Physical Review Letters'' (''PRL''), established in 1958, is a peer-reviewed, scientific journal that is published 52 times per year by the American Physical Society. As also confirmed by various measurement standards, which include the ''Journal Citation Reports'' impact factor and the journal ''h''-index proposed by Google Scholar, many physicists and other scientists consider ''Physical Review Letters'' to be one of the most prestigious journals in the field of physics. ''According to Google Scholar, PRL is the journal with the 9th journal h-index among all scientific journals'' ''PRL'' is published as a print journal, and is in electronic format, online and CD-ROM. Its focus is rapid dissemination of significant, or notable, results of fundamental research on all topics related to all fields of physics. This is accomplished by rapid publication of short reports, called "Letters". Papers are published and available electronically one article at a time. When published in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Review
''Physical Review'' is a peer-reviewed scientific journal established in 1893 by Edward Nichols. It publishes original research as well as scientific and literature reviews on all aspects of physics. It is published by the American Physical Society (APS). The journal is in its third series, and is split in several sub-journals each covering a particular field of physics. It has a sister journal, ''Physical Review Letters'', which publishes shorter articles of broader interest. History ''Physical Review'' commenced publication in July 1893, organized by Cornell University professor Edward Nichols and helped by the new president of Cornell, J. Gould Schurman. The journal was managed and edited at Cornell in upstate New York from 1893 to 1913 by Nichols, Ernest Merritt, and Frederick Bedell. The 33 volumes published during this time constitute ''Physical Review Series I''. The American Physical Society (APS), founded in 1899, took over its publication in 1913 and star ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Magnetism And Magnetic Materials
The ''Journal of Magnetism and Magnetic Materials'' is a peer-reviewed scientific journal that covers both basic research on magnetism and technological applications including magnetic recording. In addition to full-length research articles, it publishes review articles and rapid communications ("Letters to the Editor"). A special section, "Information Storage: Basic and Applied", covers topics on magnetic media. The editor-in-chief is S. D. Bader ( Argonne National Laboratory). Abstracting and indexing The journal is abstracted and indexed in over forty databases, including Current Contents/Physics, Chemical, & Earth Sciences, Compendex, Inspec, CSA/ASCE Civil Engineering Abstracts, and Scopus. Notable articles According to the ''Journal Citation Reports'', the journal has a 2017 impact factor of 3.046, ranking it 22nd out of 67 journals in the category "Physics, Condensed Matter" and 82nd out of 285 journals in the category "Materials Science, Multidisciplinary". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Review B
''Physical Review B: Condensed Matter and Materials Physics'' (also known as PRB) is a peer-reviewed, scientific journal, published by the American Physical Society (APS). The Editor of PRB is Laurens W. Molenkamp. It is part of the ''Physical Review'' family of journals. About the Physical Review Journals The current Editor in Chief is . PRB currently publishes over 4500 papers a year, making it one of the largest physics journals in the world. PRB ranked by the Eigenfactor, University of Washingto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Colloquium On Group Theoretical Methods In Physics
The International Colloquium on Group Theoretical Methods in Physics is an academic conference devoted to applications of group theory to physics. It was founded in 1972 by Henri Bacry and Aloysio Janner. It hosts a colloquium every two years. The ICGTMP is led by a standing committee, which helps select winners for the two major awards presented at the conference: the Wigner Medal and the Weyl Prize. Wigner Medal The Wigner Medal is an award designed "to recognize outstanding contributions to the understanding of physics through Group Theory". The Wigner Medal is administered by The Group Theory and Fundamental Physics Foundation, a publicly supported organization. Donations are tax-deductible as provided pursuant to the provisions of Section 170 of the Internal Revenue Code, a federal code of the United States. The award was first presented in 1978 to Eugene Wigner, and was first awarded at the Integrative Conference on Group Theory and Mathematical Physics. List of conf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fermion
In particle physics, a fermion is a particle that follows Fermi–Dirac statistics. Generally, it has a half-odd-integer spin: spin , spin , etc. In addition, these particles obey the Pauli exclusion principle. Fermions include all quarks and leptons and all composite particles made of an odd number of these, such as all baryons and many atoms and nuclei. Fermions differ from bosons, which obey Bose–Einstein statistics. Some fermions are elementary particles (such as electrons), and some are composite particles (such as protons). For example, according to the spin-statistics theorem in relativistic quantum field theory, particles with integer spin are bosons. In contrast, particles with half-integer spin are fermions. In addition to the spin characteristic, fermions have another specific property: they possess conserved baryon or lepton quantum numbers. Therefore, what is usually referred to as the spin-statistics relation is, in fact, a spin statistics-quantum numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
