Now showing items 61-70 of 5905
Instanton effects and linear-chiral duality
(IOP Publishing Ltd, 2004-05-01)
We discuss duality between the linear and chiral dilaton formulations, in the presence of super-Yang-Mills instanton corrections to the effective action. In contrast to previous work on the subject, our approach appeals ...
Elementary solutions of the transport equation and their applications
(Elsevier, 1960-01)
A new method of treating problems involving the transport equation is discussed. Starting from Van Kampen's observation that it is sufficient that "solutions" be distributions, the elementary solutions of the homogeneous ...
The influence of beam model differences in the comparison of dose calculation algorithms for lung cancer treatment planning
(IOP Publishing Ltd, 2005-03-07)
In this study, we show that beam model differences play an important role in the comparison of dose calculated with various algorithms for lung cancer treatment planning. These differences may impact the accurate correlation ...
Controlling the motion of interacting particles: Homogeneous systems and binary mixtures
(The American Institute of Physics, 2005-06)
We elaborate on recent results on the transport of interacting particles for both single-species and binary mixtures subject to an external driving on a ratchetlike asymmetric substrate. Moreover, we also briefly review ...
Euclidean Fermi fields with a hermitean Feynman-Kac-Nelson formula. I
(Springer-Verlag, 1974-03)
We construct free, Euclidean, spin one-half, quantum fields with the following properties: (i) CAR; (ii) Symanzik positivity; (iii) Osterwalder-Schrader positivity; (iv) no doubling of particle or spin states. They admit ...
An Auxiliary RF Channel with Convenient Phase Control for NMR Spectrometers
(Elsevier, 1993-09)
Holography, diffeomorphisms, and scaling violations in the CMB
(IOP Publishing Ltd, 2004-07-01)
We analyze diffeomorphism invariance in inflationary spacetimes regulated by a boundary at late time. We present the action for quadratic fluctuations in the presence of a boundary, and verify that it is gauge invariant ...
Absence of goldstino decoupling in hierarchical superunified models
(Elsevier, 1983-08-25)
It is shown that there exist a class of hierarchical supersymmetric unified models in which the Goldstino field does not decouple from that light states. We illustrate this with an SUN model. The phenomenology and cosmology ...