منابع مشابه
Generalized Jordan-Wigner transformations.
We introduce a new spin-fermion mapping, for arbitrary spin S generating the SU(2) group algebra, that constitutes a natural generalization of the Jordan-Wigner transformation for S = 1/2. The mapping, valid for regular lattices in any spatial dimension d, serves to unravel hidden symmetries. We illustrate the power of the transformation by finding exact solutions to lattice models previously u...
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so that an is the sum of the n th and n + 1 Catalan numbers. Then the Hankel transform of {a0, a1, a2, . . .} begins 2, 5, 13, 34, . . .. Layman first conjectured in the On-Line Encyclopedia of Integer Sequences ([4], see sequence A001906) that this sequence consists of every other Fibonacci number, and subsequently Cvetković, Rajković and Ivković [2] proved this conjecture. The current paper a...
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Melosh rotations are defined for antiquarks that provide unitary transformations from uto v-spinor basis states. Methods for constructing a complete set of relativistic three-quark states are detailed for the nucleon, N∗(1520) and N∗(1535). States containing virtual antiquarks are constructed and a physical interpretation of v-spinor basis states in QCD is provided in terms of transition amplit...
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A major goal of research in generative grammar is to correctly characterize the principle constraining the locality of movement. While various proposed principles e.g., subjacency, shortest move, minimal link condition, phase impenetrability condition(PIC) have their differences, they also all have the disturbing property that they are stipulations imposed upon the computational system. For exa...
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Algebraic Bargmann and Darboux transformations for equations of a more general form than the Schrödinger ones with an additional functional dependence h(r) in the righthand side of equations are constructed. The suggested generalized transformations turn into the Bargmann and Darboux transformations for both fixed and variable values of energy and an angular momentum.
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ژورنال
عنوان ژورنال: Ergodic Theory and Dynamical Systems
سال: 1989
ISSN: 0143-3857,1469-4417
DOI: 10.1017/s0143385700004788