Now showing items 11-20 of 32
Riesz bases and positive operators on Hilbert space
It is shown that a normalized Riesz basis for a Hilbert space H (i.e., the isomorphic image of an orthonormal basis in H) induces in a natural way a new, but equivalent, inner product onH in which it is an orthonormal ...
Background independent quantum mechanics and gravity
(American Physical Society, 2003-09-15)
We argue that the demand of background independence in a quantum theory of gravity calls for an extension of standard geometric quantum mechanics. We discuss a possible kinematical and dynamical generalization of the latter ...
Chaotic transport in low-dimensional superlattices
(American Physical Society, 2003-02)
We predict that in arrays of quantum dots (0D superlattice) and arrays of one-dimensional quantum wires (1D superlattice) chaotic transport should be observed in the presence of an ac field and for a wide range of physical ...
Prediction of rheometrical and complex flows of entangled linear polymers using the double-convection reptation model with chain stretch
(AIP Publishing, 2003-01)
We study the rheometrical and complex flow response of the double-convection-reptation (DCR) model with chain stretch proposed recently by Ianniruberto and Marrucci (2002) for entangled linear polymers. The single- and ...
Quark-lepton unification and lepton flavor nonconservation from a TeV-scale seesaw neutrino mass texture
(American Physical Soc, 2003-10-01)
A hybrid collocation method for volterra integral equations with weakly singular kernels
(Siam Publications, 2003)
The commonly used graded piecewise polynomial collocation method for weakly singular Volterra integral equations may cause serious round-off error problems due to its use of extremely nonuniform partitions and the sensitivity ...
Reaction-controlled diffusion: Monte Carlo simulations
(American Physical Society, 2003-10)
We study the coupled two-species nonequilibrium reaction-controlled diffusion model introduced by Trimper [Phys. Rev. E 62, 6071 (2000)] by means of detailed Monte Carlo simulations in one and two dimensions. Particles of ...
NuTeV anomaly, neutrino mixing, and a heavy Higgs boson
(American Physical Society, 2003-04)
Recent results from the NuTeV experiment at Fermilab and the deviation of the Z invisible width, measured at CERN LEP and the SLAC Linear Collider, from its standard model (SM) prediction suggest the suppression of neutrino-Z ...
Transfer function approach to output specification in certain linear distributed parameter systems
(American Institute of Mathematical Sciences, 2003)
We carry out error estimation of a class of immersed finite element (IFE) methods for elliptic interface problems with both perfect and imperfect interface jump conditions. A key feature of these methods is that their ...
Fluorinert as a pressure-transmitting medium for high-pressure diffraction studies
(AIP Publishing, 2003-10)
Fluorinert is a liquid pressure-transmitting medium that is widely used in high-pressure diffraction work. A systematic study of five different fluorinerts was carried out using single-crystal x-ray diffraction in a ...