## Frontiera E Confini Della Fisica Di Molte ParticelleR. A. Broglia, John Robert Schrieffer, Società italiana di fisica Subjects at the forefront of many-particle research, like high-temperature superconductivity, the quantum Hall effect, heavy fermions, tunneling of quantal systems with many degrees of freedom, Monte Carlo calculations on a lattice etc., were presented. The meeting was well timed as it coincided with a very active period of research in the study of superconductivity and thus provided an excellent opportunity to assess some of the major developments that have taken place in the last years. |

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Page 119

This

of a triangular Wigner crystal, the dual ... To each plaquette X on the triangular

Wigner

...

This

**lattice**of plaquettes is otherwise known as the dual**lattice**, and, for the caseof a triangular Wigner crystal, the dual ... To each plaquette X on the triangular

Wigner

**lattice**we assign an integer spin variable 8X defined to be the number of...

Page 365

Just as the 3-D spatial

values t(= ip/L with I = 0, 1, L — 1. A central feature of a simulation is that it is

carried out on a finite system. Usually this means a finite-sized system as well as

a finite ...

Just as the 3-D spatial

**lattice**is discrete, we will break the t variable up into Lvalues t(= ip/L with I = 0, 1, L — 1. A central feature of a simulation is that it is

carried out on a finite system. Usually this means a finite-sized system as well as

a finite ...

Page 366

Unfortunately in this case, the number of operations required to update a

N spatial sites and L time sites varies as N*L. For a 3-D spatial

Nv-Nt-N„ so that the required computation time becomes prohibitive as the ...

Unfortunately in this case, the number of operations required to update a

**lattice**ofN spatial sites and L time sites varies as N*L. For a 3-D spatial

**lattice**N varies asNv-Nt-N„ so that the required computation time becomes prohibitive as the ...

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### Contents

insula | 1 |

EVB theory such as it is | 14 |

Formal theories of EVB and highT0 superconductivity | 20 |

Copyright | |

21 other sections not shown

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### Common terms and phrases

amplitude angular momentum approximation band barrier behavior calculated charge classical configuration correlation Coulomb coupling cross-section defined deformation degrees of freedom density described dipole discussed dynamics edited effect eigenstates electron equation of motion excitation energy exciton expectation value experimental factor Fermi energy Fermi liquid Fermi surface fermion finite fluctuations gauge given Green's function Gutzwiller Hamiltonian Hartree heavy-ion hole Hubbard model inertia interaction Landau lattice Laughlin Lett limit linear magnetic field mass matrix element mean-field Monte Carlo neutrons nuclear nucleon nucleus obtained orbital oscillator P. W. ANDERSON pairing parameter particle path integral phase Phys physics potential problem quadrupole quantity quantum quasi-particle R. A. BROGLIA relativistic renormalized resonance rotational frequency sect shown in fig simulation single-particle spin spinon superconductivity symmetry temperature term theory tion tonian transition tunnelling variable vector wave function yrast zero