Results 11 to 20 of about 426,314 (212)
Quantum Inequalities in Quantum Mechanics [PDF]
Annales Henri Poincaré, 2005 We study a phenomenon occuring in various areas of quantum physics, in which an observable density (such as an energy density) which is classically pointwise nonnegative may assume arbitrarily negative expectation values after quantisation, even though the spatially integrated density remains nonnegative.
Eveson, Simon P. +2 more
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Geometric quantum mechanics [PDF]
Journal of Geometry and Physics, 2001 27 pages.
Brody, D C, Hughston, L P
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SUPERCONFORMAL QUANTUM MECHANICS [PDF]
Nuclear Physics B, 1984 N = 1 and N = 2 superconformal quantum mechanics are formulated and solved. Spontaneous symmetry breaking occurs. A de Sitter subalgebra is used to define new supersymmetric evolution operators. The modified system has a discrete spectrum exhibiting new supersymmetries. The N = 2 extended de Sitter superalgebra is spontaneously broken to N = 1.
S. Fubini, E. Rabinovici
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Berry's phase in noncommutative spaces [PDF]
, 2002 We introduce the perturbative aspects of noncommutative quantum mechanics. Then we study the Berry's phase in the framework of noncommutative quantum mechanics. The results show deviations from the usual quantum mechanics which depend on the parameter of
Alavi S A +10 more
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SUSUSY Quantum Mechanics [PDF]
International Journal of Modern Physics A, 1997 The exactly solvable eigenproblems in Schrödinger quantum mechanics typically involve the differential "shift operators". In the standard supersymmetric (SUSY) case, the shift operator turns out to be of first order. In this work, I discuss a technique to generate exactly solvable eigenproblems by using second order shift operators.
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Biorthogonal quantum mechanics [PDF]
Journal of Physics A: Mathematical and Theoretical, 2013 The Hermiticity condition in quantum mechanics required for the characterisation of (a) physical observables and (b) generators of unitary motions can be relaxed into a wider class of operators whose eigenvalues are real and whose eigenstates are complete.
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From Cbits to Qbits: Teaching computer scientists quantum mechanics [PDF]
, 2002 A strategy is suggested for teaching mathematically literate students, with no background in physics, just enough quantum mechanics for them to understand and develop algorithms in quantum computation and quantum information theory.
Mermin, N. David
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Local Quantum Measurement and No-Signaling Imply Quantum Correlations [PDF]
, 2010 We show that, assuming that quantum mechanics holds locally, the finite speed of information is the principle that limits all possible correlations between distant parties to be quantum mechanical as well.
A. Doherty +10 more
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Nuclear Physics B, 1983 Abstract Recently the possibility was raised that time can be regarded as a dynamical variable. This leads to the formulation of discrete mechanics, with the usual continuum mechanics appearing as an approximation. The difference between these two is examined in this paper.
R. Friedberg, T. D. Lee
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, 2005 Classical statistical average values are generally generalized to average values of quantum mechanics, it is discovered that quantum mechanics is direct generalization of classical statistical mechanics, and we generally deduce both a new general ...
Anandan J. +18 more
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