## 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 70

In this

apply the pairing model to calculate the radioactive- decay rates. Exotic

radioactivity is the emission of light nuclei such as carbon and neon nuclei from

heavy ...

In this

**subsection**I will consider the physical problem of exotic radioactivity, andapply the pairing model to calculate the radioactive- decay rates. Exotic

radioactivity is the emission of light nuclei such as carbon and neon nuclei from

heavy ...

Page 162

In the following

essential approximation which we use is that the tunnelling is not treated in a self

-consistent way. The path integral method described in sect. 2 is equivalent to a ...

In the following

**subsection**we derive eq. (5.6) from a path integral approach. Theessential approximation which we use is that the tunnelling is not treated in a self

-consistent way. The path integral method described in sect. 2 is equivalent to a ...

Page 257

In the present

have in a variety of properties of strongly i-otating nuclei. We carry out our

investigations for high rotational frequencies co > coc , that is for normal systems.

In the present

**subsection**we study some of the consequences these fluctuationshave in a variety of properties of strongly i-otating nuclei. We carry out our

investigations for high rotational frequencies co > coc , that is for normal systems.

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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