Showing papers in "Annals of Physics in 1974"

TL;DR: In this article, order α6mc2 corrections to the fine structure splitting of the He4 atom were investigated based on the covariant Bethe-Salpeter equation including external potential to take account of the nuclear Coulomb field.

TL;DR: In this article, a model relativistic, many-body, quantum field theory composed of a baryon field, a neutral scalar meson field coupled to the scalar density ψ ψ, and a neutral vector meson fields coupled with the conserved Baryon current i Ψ γλψ is developed.

TL;DR: In this article, it is shown that if the phase space of general relativity is defined so as to contain the trajectories representing solutions of the equations of motion then, for asymptotically flat spaces, the Hamiltonian does not vanish but its value is given rather by a nonzero surface integral.

TL;DR: In this article, the authors discuss in a unified manner configurations of idealized atomic nuclei, rotating liquid drops and rotating idealized astronomical masses with surface tension, and the existence of super-deformed nuclei.

TL;DR: In this paper, the authors show how to obtain Weyl-like solutions with a conformal scalar field from a single Einstein-ordinary scalar solution (of which many are known).

TL;DR: In this article, the authors test the validity of the above conjectures on gravitational collapse by attempting to create a spacetime with m 2 a 2 + e 2 starting with a Kerr-Newman black hole.

TL;DR: In this article, the classical theory of the free relativistic spherical top is first developed from a Lagrangian viewpoint, and a canonical formalism is established following the approach suggested by Dirac for constrained Hamiltonian systems.

TL;DR: Gravitational perturbations of the Schwarzschild metric are treated from a point of view which is adapted, in a natural way, to the gauge group of the perturbed Einstein equations as discussed by the authors.

TL;DR: In this paper, the authors generalized the Droplet Model of masses and density distributions to arbitrary shapes, and derived formulas for the corrections to the nuclear energy associated with these effects, which leads to a Droplet model atomic mass formula which is presented with a preliminary set of coefficients adjusted to nuclear ground state masses and fission barriers.

TL;DR: In this paper, it was shown that the two spacelike Killing vectors always commute with each other and the regularity conditions for spacetimes of this type were derived and shown to be compatible with Einstein's equations.

TL;DR: In this article, the Laplace transform Ω(s) of the Green function G of the Schrodinger equation with respect to 1 h is derived for a complex action variable s, whose singularities lie at the values of the action along each possible (complex) classical path, including the paths which reflect from singularities of the potential.

TL;DR: In this paper, the one-photon self-energy radiative level shift of an electron in a Coulomb field is examined and an expression for the level shift which is suitable for direct numerical evaluation, for Z in the range 10-110, is obtained.

TL;DR: In this article, a hydrodynamic model is used to study the electrodynamics of a layered electron gas arranged in a periodic array and neutralized by a rigid inert positive background.

TL;DR: In this article, the one-photon self-energy radiative level shift for an electron in a Coulomb potential was evaluated numerically for the 1S 1 2 state.

TL;DR: In this article, a general theory of electrodynamic fluctuations in tunnel junctions is developed using standard many-body techniques, and the quasiparticle, pair, and quasiphoton-pair current power spectra are determined.

TL;DR: In this paper, the authors demonstrate the possibility of removing the divergences in the energy-momentum tensor by identifying divergent terms with renormalizations of the coupling constants in the gravitational field equation, modified to include a cosmological term and terms quadratic in the curvature.

TL;DR: In this article, a theory of gravitation satisfying the covariance and equivalence principles is presented, which makes use of a Riemannian metric tensor gμν describing the true gravitational field, and a flat-space metric tensors γμν, describing the inertial forces.

TL;DR: In this article, a general theory of the spin dynamics of anisotropic Fermi superfluids of the generalized BCS type was developed, under conditions which should be realistic for any such phase of liquid 3 He occurring below 3 mK.

TL;DR: The energy-momentum tensor in spontaneously broken non-Abelian gauge field theories is studied in this paper, where Green's functions are proved to be finite to all orders in perturbation theory to zero and first order in q, and finite to one loop order for general q.

TL;DR: In this article, the mechanism of production of gravitons in the empty, anisotropic, spatially inhomogeneous Gowdy three-torus cosmology is considered and the Hamiltonian methods of Arnowitt, Deser, and Misner are employed to identify the dynamical variables which are to be quantized.

TL;DR: In this article, the energy-momentum tensor in ϕ4 theory and spontaneously broken non-Abelian gauge field theories is extended to show finiteness to all orders in perturbation theory.

TL;DR: In this paper, the one-dimensional classical electron gas is considered in detail and it is proved that this system is in a crystalline state, at all temperatures and densities.

TL;DR: In this paper, the short distance behavior of the photon propagator is discussed within the context of the corresponding Callan-Symanzik equation up to the sixth order, and a mechanism of cancellations in the calculation of β(α) has been found, and proved its validity to all orders in perturbation theory.

TL;DR: In this paper, the Brueckner formulation of the energy density formalism has been extended in order to take into account shell structure effects in the description of nuclear bulk properties, which is shown to reproduce the bulk nuclear properties accurately: binding energies and radii are in good agreement with experiments.

TL;DR: In this article, the problem of the phase transition in an interacting Bose system is investigated from a microscopic point of view, and the existence of certain poles in the self-energies and the polarization part is revealed, which offers a mechanism to separate the one-particle and collective spectra from each other at the transition point.

TL;DR: In this paper, a multichannel separable potential model with the property that the off-shell elastic scattering amplitude is generated directly from the measured elastic-channel phase shifts is explored.

TL;DR: In this article, a Brans-Dicke scalar field is introduced, which yields the old theory of Weyl, when coupled to gravity, and the theory then reduces in a special gauge to Einstein's theory even in the presence of matter.

TL;DR: In this article, it was shown that quasinuclear meson resonances are distinguished by comparatively large partial width for decay into nucleon and antinucleon, and that there exist nuclear-like bound and resonant states in NN system, all near threshold states having nonzero orbital angular momenta of relative N and N motion.

TL;DR: In this article, the free energy per nucleon f(T, n) in Landau's quasiparticle approximation was derived from it, and the degenerate limit of nuclear matter was discussed in particular.

TL;DR: In this paper, the authors derive macroscopic equations for the vibrations of nuclei from the RPA equations of motion and derive an energy for the quadrupole vibration 30% lower than the empirical.