Results 311 to 320 of about 13,047 (346)
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Quantum Mechanics as a Theory of Probability
, 2005We develop and defend the thesis that the Hilbert space formalism of quantum mechanics is a new theory of probability. The theory, like its classical counterpart, consists of an algebra of events, and the probability measures defined on it.
I. Pitowsky
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Quantum theory of an antiferromagnet on a triangular lattice in a magnetic field
Journal of Physics: Condensed Matter, 1991The reorientation process in a magnetic field in two-dimensional isotropic and XY quantum Heisenberg antiferromagnets is shown to occur through the intermediate phase with unbroken continuous symmetry and constant magnetization equal to one third of the saturation value.
A V Chubukov, D I Golosov
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A quantum field theory of lattice dynamics at finite temperature
Physica A: Statistical Mechanics and its Applications, 1984Abstract A quantum field theoretical treatment of three-dimensional cubic crystals at finite temperature is presented from the view-point of the spontaneous breakdown of the spatial translational invariance using thermo field theory. The effective interaction Hamiltonian is constructed by taking into account the dynamical map of the molecular density
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A quantum field theory of lattice dynamics and melting in compounds
Il Nuovo Cimento D, 1989A unified theory on the lattice dynamics and the melting in compounds is presented by taking into account the Coulomb interaction. The melting temperature is determined by the mean value of the eigenfrequencies of the atoms. The theory is applied to zincblende and rock salt structure crystals.
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Lattice Renormalization of Non-Perturbative Quantum Field Theory
1980We discuss lattice renormalization as a basis for understanding non-perturbative effects in quantum field theory. We first study two solvable examples of quantum field theory in two dimensions where lattice renormalization may be explicitly carried out, namely the Ising field theory and the Thirring model.
Barry M. Mc Coy, Tai Tsun Wu
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Bosonic mean-field theory of quantum Heisenberg spin systems: Bose condensation and magnetic order.
Physical Review B (Condensed Matter), 1989Sarker, Jayaprakash, Krishnamurthy, Ma
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Finite-lattice methods in quantum Hamiltonian field theory. I. O(2) and O(3) Heisenberg models
, 1981C. Hamer, M. Barber
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Tensor lattice field theory for renormalization and quantum computing
Reviews of Modern Physics, 2022Yannick Meurice +2 more
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Hydrodynamics as a Quantum Field Theory on the lattice
Proceedings of 31st International Symposium on Lattice Field Theory LATTICE 2013 — PoS(LATTICE 2013), 2014openaire +1 more source
Segregated quantum phases of dipolar bosonic mixtures in two-dimensional optical lattices
Physical Review A, 2020Rukmani Bai +2 more
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