1,023 research outputs found

    Observation of high-order quantum resonances in the kicked rotor

    Full text link
    Quantum resonances in the kicked rotor are characterized by a dramatically increased energy absorption rate, in stark contrast to the momentum localization generally observed. These resonances occur when the scaled Planck's constant hbar=(r/s)*4pi, for any integers r and s. However only the hbar=r*2pi resonances are easily observable. We have observed high-order quantum resonances (s>2) utilizing a sample of low temperature, non-condensed atoms and a pulsed optical standing wave. Resonances are observed for hbar=(r/16)*4pi r=2-6. Quantum numerical simulations suggest that our observation of high-order resonances indicates a larger coherence length than expected from an initially thermal atomic sample

    A preliminary analysis of the data from experiment 77-13 and final report on glass fining experiments in zero gravity

    Get PDF
    Thermal fining, thermal migration of bubbles under reduced gravity conditions, and data to verify current theoretical models of bubble location and temperatures as a function of time are discussed. A sample, sodium borate glass, was tested during 5 to 6 minutes of zero gravity during rocket flight. The test cell contained a heater strip; thermocouples were in the sample. At present quantitative data are insufficient to confirm results of theoretical calculations

    Phase Space Tomography of Classical and Nonclassical Vibrational States of Atoms in an Optical Lattice

    Full text link
    Atoms trapped in optical lattice have long been a system of interest in the AMO community, and in recent years much study has been devoted to both short- and long-range coherence in this system, as well as to its possible applications to quantum information processing. Here we demonstrate for the first time complete determination of the quantum phase space distributions for an ensemble of 85Rb^{85}Rb atoms in such a lattice, including a negative Wigner function for atoms in an inverted state.Comment: Submitted to Journal of Optics B: Quantum and Semiclassical Optics. Special issue in connection with the 9th International Conference on Squeezed States and Uncertainty Relations, to be held in Besancon, France, on 2-6 May 200

    STOP THE BEACH RENOURISHMENT, INC. v FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION: AN AVULSION OF LITTORAL RIGHTS

    Get PDF
    This note analyses the United States Supreme Court’s decision in Stop the Beach Renourishment, Inc. v Florida Department of Environmental Protection. This note focuses on whether the Beach and Shore Preservation Act constitutes an unconstitutional taking of littoral owners’ right to accretions through authorisation of beach restoration projects. Part II of this note provides background information on littoral rights, the Beach and Shore Preservation Act, and the Court’s decision in Stop the Beach Renourishment, Inc. v Florida Department of Environmental Protection. Part III analyses the Court’s decision and concludes with a finding that the Beach and Shore Preservation Act constitutes an unconstitutional taking of littoral owners’ vested right to accretions. After a careful analysis of the three main cases relied on in the Court’s decision, the real background principles of Florida property law come to light; the state does not have a right to fill sovereign submerged lands adjacent to littoral property it does not own, and littoral property owners have a vested right to accretions. This vested right to accretions is found not only in common law but in the Florida Constitution and in Florida Statutes. By setting a fixed erosion control line as the boundary between private and sovereign lands, the Act unconstitutionally eliminates the littoral owners’ vested right to accretions without the occurrence of a justifying avulsive event. The purpose of this article is to stress that the Florida Supreme Court and the United States Supreme Court severely misinterpreted Florida property law. I am compelled, based on my conclusions regarding the underlying property law, to state that the Supreme Court should have resolved the judicial takings issue. My interest, however, is in water law and showing that two important courts made a fundamental mistake in categorising the underlying property law. Judicial takings are an issue in this case, but many other scholars have discussed it and I reserve the issue for another day

    The Abduction of Japanese Latin Americans during World War II

    Get PDF

    Hearing the Words: From Devotional Practice to Ethical Living

    Get PDF

    Oral History Interview: Kenny Partlow

    Get PDF
    This interview is one of a series conducted with former employees of the Huntington Owens-Illinois, Inc. glass bottle factory. Kenny Partlow was an employee at the Owens Illinois glass plant. He discusses: his employment history (at Owens Illinois and elsewhere); different jobs and duties at the plant; labor unions (including one that Mr. Partlow was president of); strikes and lockouts; machines taking jobs from employees; individuals such as Denny Silvis (a plant manager), Opal Mann, Kitty Dukakis, & Senator Ned Jones; the closing of the plant; racial & gender integration at the plant some discussion of politics; a very brief section on eating buffalo/beefalo; sports (mainly boxing); his views on Huntington, WV; and economics.https://mds.marshall.edu/oral_history/1425/thumbnail.jp
    corecore