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Helvetica Physica Acta

Helvetica Physica Acta Band 59 (1986)
Überschrift Seite
Heft 1 1
Artikel: Vom "Sel Polychreste" zur Ferroelektrizität : ein Rückblick 1
Article: Knowledge engineering with expert systems 21
Association News: Bericht über die Herbsttagung der Schweizerischen Physikalischen Gesellschaft am staatlichen Seminar in Biel vom 3. + 4. Oktober 1985 88
Issue 2 201
Article: Anomalies 201
Article: Constructive quantum field theory : goals, methods, results 220
Article: Renormalization properties and chiral anomalies in supersymmetric gauge theories 229
Article: Renormalization group and theory of large fluctuations : some recent results in the study of coexistence of phases 234
Article: Euclidean quantum mechanics and stochastic processes 241
Article: Hydrodynamic interactions and properties of suspensions 263
Article: Stability near resonances in classical mechanics 278
Article: Strong field effects in general relativity 292
Issue 3 303
Article: Über Balmers Spektralformel : Analyse einer wissenschaftlichen Entdeckung 303
Article: On the decomposition of relativistic quantum field theories into pure phases 331
Article: Polarization formalism for elastic scattering of leptons by spin 1/2 and spin 1 particles in the one photon exchange approximation 349
Article: Lyapunov exponent, scale symmetry and chaos in Yang-Mills equations 363
Article: Decay of unstable states in presence of fluctuations 367
Article: On the equations of motion of an N-component charged fluid 390
Article: Study of the many-body correlation effects in nickel by positron annihilation 410
Article: On the unusual physical properties of europium-based molybdenum chalcogenides and related Chevrel compounds 417
Artikel: Ueber Driftwellen in einem zylindrischen Plasma und ihre magnetischen Komponenten 490
Heft 4 513
Artikel: Review of operating atomic beam sources 513
Artikel: Cooling of high intensitiy atomic hydrogen beams to liquid helium temperatures 526
Artikel: Recombination problems between 4 and 100 K 539
Artikel: The ring magnetron ionizer 547
Artikel: An ECR ionizer for an atomic beam polarized source ... : will it help? 553
Artikel: Ideas for a saturne new source 561
Artikel: Polarized H^- sources for the AGS : present and future 563
Artikel: Progress report on the cooled ETH polarized ion source 568
Artikel: The saturne polarized particle source 573
Artikel: Velocity measurements of a cooled atomic hydrogen beam 578
Artikel: Rapporteur's report, session (E) 582
Artikel: Polarized atomic hydrogen as a target for high-energy storage rings 584
Artikel: A jet of ultracold polarized hydrogen atoms 594
Artikel: Note on limits of ground-state polarized atomic beam density 596
Artikel: Storage cells as polarized gas targets 597
Artikel: Recent developments in spin-polarized hydrogen 606
Artikel: Summary on atomic beams, sources, jets and storage cells 612
Artikel: Lamb-shift sources reliable versatile sources for low acceptance accelerators 620
Artikel: Problems of transmitting a high intensity primary H^+ ion beam in the lamb shift source 628
Artikel: A magnetic quartz capillary proton source 632
Artikel: An ion beam extraction grid using nets of fine Tungsten wires for the lamb shift source 636
Artikel: Rapporteur's report on session H : Lambshift-sources 641
Artikel: A review of optically pumped polarized ion sources 643
Artikel: Wall relaxation rates for an optically pumped Na vapor 652
Artikel: Radiation trapping in an optically pumped alkali vapor 657
Artikel: Cross sections for spin exchange collisions between fast hydrogen atoms and hydrogen or alkali atoms 662
Artikel: Nuclear spin polarization of hydrogen by collision with optically pumped sodium 666
Artikel: Collisional pumping in polarized sodium vapor 670
Artikel: Status of the optically pumped polarized H^- ion source at TRIUMF 674
Artikel: High-intensity, pulsed, optically pumped polarized proton and H^- ion source 681
Artikel: Summary on sources using pumping schemes 690
Artikel: Emittance quotations, a recommendation 696
Artikel: A computer controlled analysis of a polarized ion source 698
Artikel: The low energy proton polarimeter for the polarized H^- beam source at the Brookhaven AGS 703
Artikel: Secretary's report, session (J) 708
Artikel: A method of generating intense nuclear polarized beams by selective photodetachement of negative ions 709
Artikel: Self-polarization of protons in storage rings 710
Artikel: Manipulating atoms with light 717
Artikel: Spin waves in polarized quantum fluids 722
Artikel: New application of polarized ions 723
Artikel: Review of operational polarized targets 728
Artikel: Microwave induced optical nuclear polarization 737
Artikel: Polarised neutron scattering from dynamic polarised targets of biological origin 741
Artikel: New infrared tunable lasers for polarizing 3He by optical pumping 747
Artikel: Polarized nuclei : beyond the hydrogens 753
Artikel: Recent progress in the polarization of very short-lived nuclides 760
Artikel: Rapporteur's report, session (F) 766
Artikel: Progress report on polarization of 6LiD and 7LiH irradiated with high energy electrons 767
Artikel: Tensor polarization studies in a single crystal of ND3 772
Artikel: Dynamic polarization in a 3He/4He evaporation cryostat 777
Artikel: Progress report on the polarized target for the fermilab polarized beam 786
Artikel: The TRIUMF polarised deuteron target NMR system 788
Artikel: Exchange of polarized targets in a high magnetic field and at mK temperatures 795
Artikel: Summary on polarized targets 799
Register: List of participants of the international workshop on polarized sources and targets 801
Heft 5 807
Artikel: Charles P. Enz : a short biography 807
Artikel: Space-time complexity in solid state models 811
Artikel: Universality in the kinetic of first-order phase transitions 822
Artikel: Renormalization group study of scalar field theories 833
Artikel: Effects of Dirac's negative energy sea on quantum numbers 835
Artikel: How can one calculate ππ scattering length in lattice QCD? 844
Artikel: Stability of solitons 845
Artikel: Positron annihilation in solids 859
Artikel: Muon spin rotation 866
Artikel: Microscopic investigations of the ferroelectric phase transitions in BaTiO_3 by paramagnetic resonance 874
Artikel: Brisure d'ergodicite en mécanique statistique 885
Artikel: Stochastic behavior in nonequilibrium systems 896
Artikel: Stochastic cooling 906
Artikel: Exact solution of the non-linear σ-models 907
Artikel: Symmetry violations in weak interactions and implications for new forces 909
Register: List of participants 927
Heft 6-7 931
Vereinsnachrichten: Bericht über die Frühjahrstagung der Schweizerischen Physikalischen Gesellschaft am Physikinstitut von Neuenburg vom 9.-11. April 1986 931
Heft 8 1271
Artikel: A general theory of Bose-Einstein condensation 1271
Artikel: On the general theory of Bose-Einstein condensation and the state of the free boson gas 1289
Artikel: Momentum operators for large systems 1311
Artikel: Wigner's theorem and the asymptotic condition in scattering theory 1321
Artikel: Vacuum decay in gauge theories 1337
Artikel: Perturbative derivation of the determinant of massless fermions in two dimensional space-time 1366
Artikel: Existence of ponderomotive effects for plane, uniform electromagnetic waves of arbitrary polarisation in a magnetoplasma 1387
Inhaltsverzeichnis 1405
Register: Author's index = Autorenregister = Table des auteurs 1407