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Helvetica Physica Acta

Helvetica Physica Acta Volume 63 (1990)
Überschrift Seite
Issue 1-2 1
Preface: Editorial 1
Article: Baryon matrix elements of the vector current in chiral perturbation theory 3
Article: The supercurrent and β-functions vanishing to all orders in strictly massless supersymmetric Yang-Mills theories 71
Article: Scattering theory in external fields slowly decaying in time 86
Article: Phase space analysis of the charge transfer model 107
Article: Unbounded perturbations of Boson equilibrium states in their GNS-representations 139
Article: Perturbation theory for many fermion systems 156
Issue 3 261
Article: The Hubbard model for large U 261
Article: The Anderson lattice 284
Article: Slave-Boson approaches to strongly correlated systems 310
Article: Mean field theories of the quantum Heisenberg model 323
Article: Flux phases in the t-J model 336
Article: Quasiparticles and photoemission spectra in correlated fermion systems 345
Article: Correlated lattice fermions in high dimensions 364
Issue 4 _
Article: Proceedings of the PSI workshop on intense slow positron beams and applications in condensed matter physics _
Vereinsnachrichten: Herbsttagung der SPG/SSP 471
Heft 5 557
Artikel: On generalized Bose-Einstein condensation in the almost-ideal boson gas 557
Artikel: Time interval statistics of the Brillouin spectrum 565
Artikel: Quantum Monte Carlo simulations of the two dimensional single band Hubbard model 580
Artikel: Gérard Wanders 602
Buchbesprechung: Liste des publications : Gérard Wanders 603
Artikel: About admissible boundary conditions for Euler and parabolized Navier-Stokes equations 606
Artikel: Interparticle distance in N Boson systems 616
Artikel: Pion-pion scattering 627
Artikel: Dirac operator and Chern-Simon action 660
Artikel: The geometric Schwinger model on the torus. I 670
Artikel: Supercurrent without auxiliary fields 683
Artikel: Analyticity and chiral fermions on a Riemann surface 694
Heft 6 705
Artikel: A statistical mechanical model for equilibrium ionization 705
Vereinsnachrichten: Frühjahrstagung der S.P.G. 755
Heft 7 849
Artikel: On the bound states of non-relativistic Krönig-Penney Hamiltonians with short range impurities 849
Artikel: On the bound states of relativistic Krönig-Penney Hamiltonians with short range impurities 884
Artikel: Dirac equation approach to scattering from interface potential steps and existence of interface states 908
Artikel: A non relativistic supersymmetric two body equation for scalar and spinor particles 922
Artikel: Pure state quantum stochastic differential equations in C^2 929
Artikel: Mécanique dans l'espace de phase l'approche des déformations 940
Heft 8 965
Artikel: Higher-dimensional homogeneous cosmological models 965
Inhaltsverzeichnis 1063
Register: Index of authors = Autorenregister = Table des auteurs 1069