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Random Spin Systems: Some Rigorous Results
NTIS | 1967|spins, if present, interact via a general Heisenberg or Ising interaction decreasing sufficiently rapidly with distance. It is shown that the ...Schlagwörter: Heisenberg ferromagnets -
Many-body Wigner quantum systems
NTIS | 1996|, of the particles are noncanonical and are chosen so that Heisenberg and the Hamiltonian equations are identical. The spectrum of the energy ...Schlagwörter: Heisenberg Picture -
Galilei-invariant quantum field theories with pair interaction review
NTIS | 1990|Heisenberg representation. The essential condition for existence is the stability in the thermodynamic sense and this is achieved by having the ...Schlagwörter: Heisenberg Picture -
Coding Theory Information Theory and Radar
NTIS | 2005|The discrete Heisenberg-Weyl group provides a unifying framework for a number of important sequences significant in the construction of ... -
Energy operator for infinite statistics
NTIS | 1992|We construct the energy operator for particles obeying infinite statistics defined by a q-deformation of the Heisenberg algebra. (orig ...Schlagwörter: Heisenberg Picture -
Q-Derivatives, Coherent States and Squeezing
NTIS | 1994|We show that the q-deformation of the Weyl-Heisenberg (q-WH) algebra naturally arises in discretized systems, coherent states, squeezed ...Schlagwörter: Heisenberg theory -
Exact solutions to operator differential equations
NTIS | 1992|In this talk we consider the Heisenberg equations of motion (dot q) = (minus)i(q, H), (dot p) = (minus)i(p, H), for the quantum-mechanical ...Schlagwörter: Heisenberg Picture -
Coherent States and Parasupersymmetric Quantum Mechanics
NTIS | 1992|Schlagwörter: Heisenberg theory -
Theory of Finite Degree of Freedom. Its Philosophical Background and Physical Consequences
NTIS | 1980|Schlagwörter: Heisenberg picture -
Integrable Chern-Simons gauge field theory in 2 + 1 dimensions
NTIS | 1995|Schlagwörter: Heisenberg Model -
Internal Symmetry Algebra of Exactly Integrable Dynamic Systems in Quantum Region
NTIS | 1986|quantum region to associative Hopf algebras. The latter ones were arised in Drinfeld's paper as quantum algebras. The Heisenberg operators of the ...Schlagwörter: Heisenberg Picture -
Quasi-Particle Energy of the Hubbard Model in the Weak Correlation Regime
NTIS | 1978|Schlagwörter: Heisenberg theory -
Analytic Dynamics of the One-Dimensional Tight-Binding Model
NTIS | 1988|Schlagwörter: Heisenberg model -
Conjugacy classes in the Weyl group admitting a regular eigenvector and integrable hierarchies
NTIS | 1994|the principal Heisenberg subalgebra of an affine Lie algebra, has been recently generalized to arbitrary graded Heisenberg subalgebras. The ... -
Relative Index on the Space of Embeddable CR-Structures, II
NTIS | 1995|analysis of the inverses for certain classes of convolution operators on the Heisenberg group. These results are applied to construct embeddings ...Schlagwörter: Heisenberg calculus -
Critical Dynamics at the Percolation Threshold by Fractal and Scaling Approaches
NTIS | 1983|Schlagwörter: Heisenberg ferromagnets -
'Duality twisted'boundary conditions in n-state Potts Models
NTIS | 1992|obtained from a projection mechanism in the spin-1/2 XXZ Heisenberg chain. (author). (Atomindex citation 24:030960) ...Schlagwörter: Heisenberg Picture -
Interpolating Fields for Elementary Particles in the Lee Model
NTIS | 1967|Schlagwörter: Heisenberg representation -
Exact nonlinear spin waves in some models of interacting classical spins on a one-dimensional lattice
NTIS | 1997|vectors in a ferromagnetic (FM) and an antiferromagnetic (AFM) classical Heisenberg model of interacting spins on a one-dimensional lattice. We ...Schlagwörter: Heisenberg Model
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