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Hace 6 días · The classification of the irreducible infinite-dimensional representations of the Lorentz group was established by Paul Dirac's doctoral student in theoretical physics, Harish-Chandra, later turned mathematician, in 1947.
Hace 1 día · In the autumn of 1928, Oppenheimer visited Paul Ehrenfest's institute at the University of Leiden, the Netherlands, where he impressed by giving lectures in Dutch, despite having little experience with the language.
Hace 2 días · Building on the work of Heisenberg and others, Paul Dirac's theory of emission and absorption (1927) was the first application of the quantum theory of radiation. Dirac's work was seen as crucially important to the emerging field of quantum mechanics; it dealt directly with the process in which "particles" are actually created: spontaneous ...
Hace 1 día · Bose was guided, instead, by the work of Bohr and Sommerfeld and Ehrenfest who emphasized the role played by the action principle in quantum systems. Phase space dimensions are counted in units of action, and the quantized unit of action is given by Planck’s constant h, hence quantized volumes of action in phase space are given by h 3 .
Hace 3 días · Introduction to PAW. Articles on the PAW formalism. Residual minimization method. Orthogonalizing the wave functions. Density Mixing. Direct Minimization Methods. Eigenvalues of core states. Planewaves and exact exchange.
Hace 3 días · A few years ago I wrote a paper on the epistemology of visual representations and international cooperation in the 1890 Cloud Atlas (Wolken-Atlas) by Hildebrandsson, Köppen and Neumayer. Ever since, I’ve been fascinated by clouds and the ways in which they bring people together.
Hace 3 días · Articles on the PAW formalism. The original article introducing the PAW formalism: P. E. Blöchl. Projector augmented-wave method. Physical Review B, Vol. 50, 17953, 1994. A different formulation of PAW by Kresse and Joubert designed to make the transition from USPP to PAW easy. G. Kresse and D. Joubert.
