Motivated by the need to understand hadron masses, we reexamine an old problem in QED—the composition of the electron mass—in a modern perspective. We find that in the unrenormalized QED, the vacuum subtraction plays an important role in understanding various sources of the electron mass. The same issue is also discussed in the modified minimal subtraction scheme with an emphasis on the scale a...

Molecular QED of coherent and incoherent sumfrequency and second-harmonic generation in chiral liquids in the presence of a static electric field P. Fischer & A. Salam To cite this article: P. Fischer & A. Salam (2010) Molecular QED of coherent and incoherent sum-frequency and second-harmonic generation in chiral liquids in the presence of a static electric field, Molecular Physics, 108:14, 185...

We investigate the behavior of the photon-photon scattering near the threshold ! = m e , by comparing the exact result with the approximation obtained using the Euler-Heisenberg eeective Lagrangian supplemented with higher-order derivative corrections. We also examine the ! 2 =m 2 e behavior predicted by including one-loop corrections to the Euler-Heisenberg eeective Lagrangian together with th...

We present a consistent renormalization of the topand bottom-quark/squark sector of the minimal supersymmetric standard model with complex parameters. Various renormalization schemes are defined, analyzed analytically, and tested numerically in the decays ~t2 ! ~ biHþ=Wþ (i 1⁄4 1, 2). No scheme is found that produces numerically acceptable results over all the parameter space, where problems oc...

H. J. Kimble, K. Birnbaum, A. C. Doherty, C. J. Hood, T. W. Lynn, H.-C. Nagerl, D. M. Stamper-Kurn, D. W. Vernooy, and J. Ye Norman Bridge Laboratory of Physics 12-33 California Institute of Technology Pasadena, California 91125 Cavity quantum electrodynamics (QED) offers powerful possibilities for the deterministic control of atom-photon interactions quantum by quantum [1]. Indeed, modern expe...

Title of dissertation: CROSS-CORRELATIONS AND ENTANGLEMENT IN CAVITY QED Matthew L. Terraciano, Doctor of Philosophy, 2006 Dissertation directed by: Professor Luis A. Orozco Department of Physics Every quantum system subjected to measurements is an open quantum system. The cavity QED system is elegant in that it probes the interaction between two quantum systems, the atom and the field, while i...

We extend HPQCD's earlier $n_f=4$ lattice-QCD analysis of the ratio $\overline{\mathrm{MSB}}$ masses $b$ and $c$ quark to include results from finer lattices (down 0.03fm) a new calculation QED contributions mass ratio. find that $\overline{m}_b(\mu)/\overline{m}_c(\mu)=4.586(12)$ at renormalization scale $\mu=3$\,GeV. This result is nonperturbative. Combining it with recent lattice QCD$+$QED d...

Recent theoretical results have demonstrated that non-commutative geometries naturally appear within the context of string/M-theory. One consequence of this possibility is that QED takes on a non-abelian nature due to the introduction of 3and 4-point functions. In addition, each QED vertex acquires a momentum dependent phase factor. We parameterize the effects of non-commutative space-time co-o...