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We describe a simple nonlinear electrical circuit that can be used to study chaotic phenomena. The circuit employs simple electronic elements such as diodes, resistors, and operational amplifiers, and is easy to construct. A novel feature of the circuit is its use of an almost ideal nonlinear element, which is straightforward to model theoretically and… (More)

It has recently been argued that long range forces due to the exchange of massless neutrinos give rise to a very large self-energy in a dense, finite-ranged, weakly-charged medium. Such an effect, if real, would destabilize a neutron star. To address this issue we have studied the related problem of a massless neutrino field in the presence of an external,… (More)

- Ken Kiers, Tim Klein, Jeff Kolb, Steve Price, Julien Clinton Sprott
- I. J. Bifurcation and Chaos
- 2004

We explore the chaotic behavior of a nonlinear electrical circuit constructed with simple components such as diodes and linear operational amplifiers. The circuit may be regarded as a nonlin-ear analog computer that gives a nearly exact solution of a particular chaotic model. Detailed comparisons between theoretical and experimental bifurcation points and… (More)

We study the effect of coherent and incoherent broadening on neutrino oscillations both in vacuum and in the presence of matter (the MSW effect). We show under very general assumptions that it is not possible to distinguish experimentally neutrinos produced in some region of space as wave packets from those produced in the same region of space as plane… (More)

- Ken Kiers, Amarjit Soni, Guo-Hong Wu
- 2000

We consider the partial rate asymmetry in the inclusive decay modes b → sγ and b → dγ, concentrating on non-standard models with new charged Higgs interactions. We find that the charged Higgs contribution to the asymmetry for b → sγ is small in such models due to a universal cancellation mechanism. The asymmetry is therefore difficult to distinguish… (More)

- Ken Kiers, Nathan Weiss
- 1998

We study the oscillations of neutrinos in a model in which the neutrino is coupled to a localized, idealized source and detector. By varying the spatial and temporal resolution of the source and detector we are able to model the full range of source and detector types ranging from coherent to incoherent. We find that this approach is useful in understanding… (More)

- Ken Kiers, John N. Ng, Guohong Wu
- 1996

High energy electron-photon colliders provide unique opportunities for probing physics beyond the standard model. We have studied the experimental signatures for two supersymmetric scenarios, with the lightest supersym-metric particle (LSP) being either the lightest neutralino or the gravitino. In the " neutralino LSP " scenario favored by the minimal… (More)

It has recently been argued that long range forces due to the exchange of massless neutrinos give rise to a very large self-energy in a dense, finite-ranged, weakly charged medium. Such an effect, if real, would destabilize a neutron star. To address this issue we have studied the related problem of a massless neutrino field in the presence of an external,… (More)

- Ken Kiers
- 1993

Mean Field Theory has been extensively used in the study of systems of anyons in two spatial dimensions. In this paper we study the physical grounds for the validity of this approximation by considering the Quantum Mechanical scattering of a charged particle from a two dimensional array of magnetic flux tubes. The flux tubes are arranged on a regular… (More)

- Makiko Nagashima, Ken Kiers, David London, Jenna Hanchey, Kevin Little
- 2009

CP violation in supersymmetry can give rise to rate asymmetries in the decays of su-persymmetric particles. In this work we compute the rate asymmetries for the three-body chargino decays˜χ ± 2 → ˜ χ ±