摘要:

AbstractWe give an analysis of mutually interacting quantum fields in given unquantized Robertson‐Walker universes using anS‐matrix approach. Transition probabilities and particle number mean values are discussed in detail with the intention to read off the underlying physics and to apply them to scattering and decay proces

ISSN:0004-6337    

DOI:10.1002/asna.2113070502

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

ISSN:0004-6337    

DOI:10.1002/asna.2113070504

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractAlternatives to General Relativity with respect to its causal structure are deeply connected with Mach's hypothesis of the cosmic origin of inertial properties. We consider the main features of a theoretical scheme to construct such alternatives and show that observable effects may be estimated without full construction of a theory. From the point of these alternatives, the light cone of Special Relativity is highly degenerated, and any deviation from General Relativity in the direction considered will reduce this degeneracy. Therefore the effects possible in the alternatives considered provide tests already on the level of Special Relativity.

ISSN:0004-6337    

DOI:10.1002/asna.2113070505

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractThe present understanding of the cosmological quark‐hadron transition is briefly reviewed, trying to outline the physical questions which are related to measurable astrophysical parameters. In particular the possible impact of baryon number inhomogeneities on primeval nucleosynthesis is discusse

ISSN:0004-6337    

DOI:10.1002/asna.2113070506

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractDiscussing three arguments which verify the quantum‐field hypothesis in electrodynamics, it is shown that in GRT analogous investigations demonstrate the opposite, namely a limitation of this conception to the low‐frequency reg

ISSN:0004-6337    

DOI:10.1002/asna.2113070507

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

ISSN:0004-6337    

DOI:10.1002/asna.2113070508

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractThe equations of motion for test particles with internal structure are derived from a general Lagrange principle. The internal structure of the particles is described by sets of unspecified geometric objects, which transform homogeneously both under coordinate and under gauge transformations. Most of the Lagrangian approaches known in the literature are special cases of our general formalism.

ISSN:0004-6337    

DOI:10.1002/asna.2113070509

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

ISSN:0004-6337    

DOI:10.1002/asna.2113070510

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractHomogeneous isotropic cosmological models driven at early times by a coherent scalar field and the vacuum polarization are considered. Both effects can lead to the existence of a finite minimal value of the scale factor and an inflationary stage of expansion. The early as well as the late time behaviour of the cosmological evolution depends critically on the ratio of the contribution from the vacuum polarization and the scalar field.

ISSN:0004-6337    

DOI:10.1002/asna.2113070511

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

ISSN:0004-6337    

DOI:10.1002/asna.2113070512

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY