Annalen der Physik

Cover image for Vol. 523 Issue 12

December 2011

Volume 523, Issue 12

Pages 959–1074

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Editorial
    6. Original Papers
    7. Historical Article
    8. 100 years ago
    1. Cover Picture: Ann. Phys. 12/2011

      Version of Record online: 5 DEC 2011 | DOI: 10.1002/andp.201190012

  2. Issue Information

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Editorial
    6. Original Papers
    7. Historical Article
    8. 100 years ago
    1. Issue Information: Ann. Phys. 12/2011

      Version of Record online: 5 DEC 2011 | DOI: 10.1002/andp.201152334

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Editorial
    6. Original Papers
    7. Historical Article
    8. 100 years ago
    1. Contents: Ann. Phys. 12/2011 (pages 959–961)

      Version of Record online: 5 DEC 2011 | DOI: 10.1002/andp.201152312

  4. Editorial

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Editorial
    6. Original Papers
    7. Historical Article
    8. 100 years ago
    1. Editorial: Ann. Phys. 12/2011 (pages 962–964)

      Ulrich Eckern

      Version of Record online: 5 DEC 2011 | DOI: 10.1002/andp.201152323

  5. Original Papers

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Editorial
    6. Original Papers
    7. Historical Article
    8. 100 years ago
    1. On the general structure of mathematical models for physical systems (pages 965–989)

      D.H. Delphenich

      Version of Record online: 8 NOV 2011 | DOI: 10.1002/andp.201100226

      It is proposed that the mathematical models for any physical systems that are based in first principles, such as conservation laws or balance principles, have some common elements, namely, a space of kinematical states, a space of dynamical states, a constitutive law that associates dynamical states with kinematical states, as well as a duality principle. The equations of motion or statics then come about from, on the one hand, specifying the integrability of the kinematical state, and on the other hand, specifying a statement that is dual to it for the dynamical states. Examples are given from various fundamental physical systems.

    2. Addendum to the Elementary Process Theory (pages 990–994)

      M.J.T.F. Cabbolet

      Version of Record online: 4 NOV 2011 | DOI: 10.1002/andp.201100194

      Thumbnail image of graphical abstract

      Recently, the Elementary Process Theory has been introduced as an axiomatic system with a potential application as a foundational framework for physics. This addendum clarifies the primitive concepts ‘phase quantum’ and ‘monad’ that play a central role in the physical picture that arises from the axiomatic system.

      Corrected by:

      Corrigendum: Corrigendum to the Elementary Process Theory

      Vol. 528, Issue 7-8, 626–627, Version of Record online: 29 APR 2016

    3. Effect of optical phonon-magnon interaction on the magnon softening at finite temperature (pages 995–1007)

      T.-M. Cheng, Z. Zhao, W.-Y. Jia, H. Chen, L. Li and L. Zhu

      Version of Record online: 18 NOV 2011 | DOI: 10.1002/andp.201100156

      Thumbnail image of graphical abstract

      A magnon-phonon interaction model is set up in a two-dimensional ferromagnetic compound square-lattice system. Using the Matsubara Green function theory the authors calculated the magnon dispersion curves on the main symmetric line in Brillouin zone, compared the influences of the magnetic ion optical phonon with non-magnetic ion optical phonon on the magnetic excitation of the system and discussed the influences of various parameters on the magnon softening. It turned out that the optical phonon-magnon coupling plays an important role on the magnon softening, the longitudinal optical phonon contributes the most to the magnon softening and magnon damping.

      Corrected by:

      Corrigendum: Corrigendum to the Elementary Process Theory

      Vol. 528, Issue 7-8, 626–627, Version of Record online: 29 APR 2016

    4. A solution of the non-uniqueness problem of the Dirac Hamiltonian and energy operators (pages 1008–1028)

      M. Arminjon

      Version of Record online: 15 NOV 2011 | DOI: 10.1002/andp.201100166

      In a general spacetime, the possible choices for the field of orthonormal tetrads lead (in standard conditions) to equivalent Dirac equations. However, the Hamiltonian operator is got from rewriting the Dirac equation in a form adapted to a particular reference frame, or class of coordinate systems. That rewriting does not commute with changing the tetrad field uα. The data of a reference frame F fixes a four-velocity field v, and also fixes a rotation-rate field Ω. It is natural to impose that u0 = v. It is shown that then the spatial triad (up) can only be rotating w.r.t. F, and that the title problem is solved if one imposes that the corresponding rotation rate Ξ be equal to Ω – or also, if one imposes that Ξ = 0.

    5. Equilibrium ensembles of electromagnetic thermal radiation in layered media (pages 1029–1044)

      B.V. Budaev and D.B. Bogy

      Version of Record online: 5 DEC 2011 | DOI: 10.1002/andp.201100141

      Thumbnail image of graphical abstract

      This paper describes equilibrium ensembles of thermally excited electromagnetic fields in layered media. The obtained results complement Planck's law of thermal radiation that determines the spectrum of the radiation but supplies little information about the ensemble of eigenfields (normal modes) excited in the medium. The developments regarding these ensembles presented in this paper make it possible to apply perturbation techniques for the analysis of the ensembles of radiated fields in layered media with a steady heat flux.

  6. Historical Article

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Editorial
    6. Original Papers
    7. Historical Article
    8. 100 years ago
    1. Otto Stern (1888–1969): The founding father of experimental atomic physics (pages 1045–1070)

      J.P. Toennies, H. Schmidt-Böcking, B. Friedrich and J.C.A. Lower

      Version of Record online: 15 NOV 2011 | DOI: 10.1002/andp.201100228

      Thumbnail image of graphical abstract

      The authors review the work and life of Otto Stern who developed the molecular beam technique and with its aid laid the foundations of experimental atomic physics. Among the key results of his research are: the experimental test of the Maxwell-Boltzmann distribution of molecular velocities (1920), experimental demonstration of space quantization of angular momentum (1922), diffraction of matter waves comprised of atoms and molecules by crystals (1931) and the determination of the magnetic dipole moments of the proton and deuteron (1933).

  7. 100 years ago

    1. Top of page
    2. Cover Picture
    3. Issue Information
    4. Contents
    5. Editorial
    6. Original Papers
    7. Historical Article
    8. 100 years ago
    1. Annalen der Physik. Band 36 (pages 1071–1074)

      Version of Record online: 5 DEC 2011 | DOI: 10.1002/andp.201190011

      Thumbnail image of graphical abstract

      A closer look into the grand history of Annalen der Physik: themes which ccupied the minds of physicists one century ago

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