Wideband pulse propagation: single-field and multi-field approaches to Raman interactions

We model the process of ultra broadband light generation in which a pair of laser pulses separated by the Raman frequency drive a Raman transition. In contrast to the usual approach using separate field envelopes for the different frequency components, we treat the field as a single entity. This requires the inclusion of few-cycle corrections to the pulse propagation. Our single-field model makes fewer approximations and is mathematically (and hence computationally) simpler, although it does require greater computational resources to implement. The single-field theory reduces to the traditional multi-field one using appropriate approximations.Comment: 6 pages, two 3-part figure

Characterisation of the dynamical quantum state of a zero temperature Bose-Einstein condensate

We describe the quantum state of a Bose-Einstein condensate at zero temperature. By evaluating the Q-function we show that the ground state of Bose-Einstein condensate under the Hartree approximation is squeezed. We find that multimode Schroedinger cat states are generated as the condensate evolves in a ballistic expansion.Comment: 13 pages, 6 figure

Kaleidoscope laser

We report the first calculations of mode patterns of unstable-cavity lasers with truly two-dimensional transverse geometries. A detailed account of numerical techniques, incorporating a nonorthogonal beam-propagation method, and results for cavities with a range of transverse symmetries, such as regular polygonal and rhomboid, are presented. In view of the beautiful complexity of the eigenmodes predicted, a novel kaleidoscope laser is proposed

Alien Registration- New?, Alfred G. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/22013/thumbnail.jp

Patently Wrong: The U.S. Supreme Court Punts in the Case of LabCorp v. Metabolite

In June 2006, after having granted certiorari and hearing oral arguments, the United States Supreme Court dismissed the case of Laboratory Corp. of America Holdings v. Metabolite Laboratories, Inc. as having been improvidently granted a writ of certiorari. Dissenting from this extraordinary step was Justice Breyer, joined by Justices Stevens and Souter. At issue in the case was a patent, the owners of which claimed that a physician\u27s use of any test to infer vitamin deficiency by raised blood serum levels of the chemical homocysteine infringed the patent. This Article argues that the Supreme Court was itself improvident in dismissing the case because the patent at issue claims ownership of a basic scientific fact, a phenomenon of nature, in violation of 35 U.S.C. § 101. Moreover, the lower courts\u27 construction of the term correlate was erroneous in that it was not determined according to the knowledge of biomedical investigators and practitioners skilled in that art. Finally, sound public policy arguments caution against granting such a patent. By failing to act, the Supreme Court essentially affirmed the U.S. Court of Appeals for the Federal Circuit\u27s holding that a patent claiming a scientific fact can be valid, and that practicing physicians who merely think about that fact are liable for patent infringement

Aren\u27t You Lucky You Have Two Mamas? Redefining Parenthood in Light of Evolving Reproductive Technologies and Social Change

Advances in reproductive technologies and a greater social acceptance of same- sex relationships have resulted in increasing numbers of lesbian couples conceiving and raising families. But when these relationships fail, state courts are faced with the difficult problem of determining which partner constitutes a parent for purposes of support and visitation. This article provides a comparative analysis of the different approaches of various state courts to this vexing problem and suggests a model that states might adopt via a modification of the Uniform Parentage Act

Aren\u27t You Lucky You Have Two Mamas? Redefining Parenthood in Light of Evolving Reproductive Technologies and Social Change

Advances in reproductive technologies and a greater social acceptance of same- sex relationships have resulted in increasing numbers of lesbian couples conceiving and raising families. But when these relationships fail, state courts are faced with the difficult problem of determining which partner constitutes a parent for purposes of support and visitation. This article provides a comparative analysis of the different approaches of various state courts to this vexing problem and suggests a model that states might adopt via a modification of the Uniform Parentage Act