Bulletin of the American Physical Society
2005 TSAPS/AAPT/SPS Joint Fall Meeting
Thursday–Saturday, October 20–22, 2005; Houston, TX
Session E2: Theory IV |
Hide Abstracts |
Room: Hawaiian Village 277 |
Saturday, October 22, 2005 10:30AM - 10:42AM |
E2.00001: Inverse Scattering Series in Seismic Applications Art Weglein |
Saturday, October 22, 2005 10:42AM - 10:54AM |
E2.00002: Solving Einstein's field equations with Mathematica James Claycomb, Rambis Chu We report an example using Mathematica to solve the semi-classical Einstein field equations in spherical coordinates. Metric variations resulting from the Casimir effect are calculated for an ideal massless superconducting sphere. Expressions for the change in scalar curvature inside the superconducting boundary are developed. We first consider the static case when the sphere is superconducting. Metric equations are then developed for the evolution of a scalar quantum field after the sphere transitions to the normal state. [Preview Abstract] |
Saturday, October 22, 2005 10:54AM - 11:06AM |
E2.00003: Electronic spectrum of a two-dimensional quantum dot array in the presence of electric and magnetic fields in the Hall configuration Enrique Munoz, Zdenka Barticevic, Monica Pacheco We report calculations of the electronic spectrum of a two-dimensional lattice of coupled quantum dots, subject to external electric and magnetic fields in the Hall configuration. The quantum dot array was modeled by a periodic superposition of truncated, parabolic potential wells. By adopting the Landau gauge, a single particle Hamiltonian was formulated, and its eigenfunctions were obtained as appropriately symmetrized, magnetic field-dependent Bloch functions. The magnetic field was consistently included in the corresponding Wannier functions, which were approximated by the eigenvectors of an isolated quantum dot in the presence of the external magnetic field, and multiplied by the Peierl's phase. [Preview Abstract] |
Saturday, October 22, 2005 11:06AM - 11:18AM |
E2.00004: Theory of Bilocalism and Reciprocity between Space-Time and Matter Ernest Eun Ho Shin One important physics that has been overlooked if not ignored in the transition from classical mechanics to quantum mechanics is the bilocalism, which states that in the most fundamental quantum regime where the genesis of fundamental paricles takes place, the center of mass (MP) as a point-like physical entity is separate and distinct from the point-like proto-particle (PP)whose motion generates the mass. The existence of bilocalism and also that of the internal space-time whose existence it implies derive naturally from the known structural and transformation properties of space-time, and, therefore, need not be merely axiomatic. Here, the superluminal connection between the two point-like entities insures the system integrity as a single particle. Photons are no exceptions to the bilocalism, and can have non-zero mass values without violating the Special Theory of Relativity. In the bilocalized version of the ``mass-less'' gauge-invariant Lagrangian of the Standard Theory, the mass term has always been present albeit implicitly and in its generic form, thus making it unnecessary to introduce an extraneous term such as the Higgs. The gauge-invariant generic mass operator replaces the Higgs mass term of the Standard Theory, and yields the reciprocity spin $\raise.5ex\hbox{$\scriptstyle 1$}\kern-.1em/ \kern-.15em\lower.25ex\hbox{$\scriptstyle 2$} $ doublets for the ground-state solutions with their nontrivial mass values, which are identified with the weak isospin $\raise.5ex\hbox{$\scriptstyle 1$}\kern-.1em/ \kern-.15em\lower.25ex\hbox{$\scriptstyle 2$} $ doublets. Additionally, there are some implications of particular and immediate interest to cosmology. [Preview Abstract] |
Saturday, October 22, 2005 11:18AM - 11:30AM |
E2.00005: How large must the Amplitude of a Pendulum be before the Motions is less than 99.44\% pure SHM G.E. Hite In most discussions of the motion of a frictionless pendulum, it is assumed or implied that only for small oscillation is the motion close to Simple Harmonic Motion (SHM). A Fourier decomposition of the theoretical motion reveals surprising results. [Preview Abstract] |
Saturday, October 22, 2005 11:30AM - 11:42AM |
E2.00006: Toward a General Procedure for Evaluating Higher Order Radiative Corrections for LHC Physics Mikhail Kalmykov, Swapan Majhi, Bennie F.L. Ward, Scott A. Yost The era of precision theoretical predictions for LHC physics processes necessitates the development of efficient and reliable theoretical tools to evaluate QCDXEW higher order radiative corrections to such processes. In this talk, we present the elements and status a new methodology which is ultimately aimed at providing the exact higher order corrections needed for exactly resummed QCDXEW MC event generators, which we also have under development so that we may realize an event-by-event comparison between theory and the precision LHC data. [Preview Abstract] |
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