114,070 research outputs found

    A useful way to obtain the central charge of entanglement Hamiltonian -- Nested entanglement entropy

    Get PDF
    In this paper, we review how to obtain the central charge of a critical entanglement Hamiltonian through the nested entanglement entropy which was first introduced in [J. Lou et al. PRB 84, 245128 (2011)]. The critical phenomena of the entanglement Hamiltonian can be identified by the central charge obtained by the nested entanglement entropy. We review our previous studies[J. Lou et al. PRB 84, 245128 (2011), S. Tanaka et al. PRA 87, 214401 (2013)] in which we investigated certain entanglement nature of two-dimensional valence-bond-solid (VBS) state and quantum hard-square models on square and triangle ladders using the nested entanglement entropy.Comment: 5 pages, 3 figures, to appear in Interdisciplinary Information Science

    Las minas del rey Salmonete [Material gráfico]: director, Charles Barton

    Get PDF
    En el verso: Gran Teatro Calderón. Valladolid : MinervaIntérpretes: Int.: Bud Abbott, Leo Carrillo, Lou CostelloCopia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2012-201

    Las áreas de conocimiento y la investigación arquitectónica y urbanística.

    Get PDF
    Existiendo un claro desfase entre el actual Catálogo de Áreas de Conocimiento de la Ley Universitaria ,con sus Descriptores, y la realidad de la investigación en Arquitectura y Urbanismo, por cuanto no es encuadrable en la división, apartados y catalogación que aquella propone, es urgente su revisión, máxime con la nueva Reforma que la LOU va a sufrir y las líneas que ésta va a implantar

    Reviews

    Get PDF
    The 1997 Tolkien Calendar. HarperPrism. Reviewed by Paula DiSante. The Starlit Jewel. Avalon Rising. Reviewed by Paula DiSante. Letters of C.S. Lewis. C.S. Lewis. Ed. by W.H. Lewis and Walter Hooper. Reviewed by Wayne G. Hammond. Tolkien - A Critical Assessment. Brian Rosebury. Reviewed by Nancy-Lou Patterson. C.S. Lewis, Man and Writer: Essays and Reviews. George Musacchio. Reviewed by Nancy-Lou Patterson. The Quotable Lewis. Wayne Martindale and Jerry Root. Reviewed by Nancy-Lou Patterson. The Figure of Beatrice: A Study in Dante. Charles Williams. Reviewed by Nancy-Lou Patterson

    Reviews

    Get PDF
    The War of the Ring. J.R.R Tolkien. Reviewed by Glen GoodKnight. Bilbo\u27s Last Song. J.R.R Tolkien, Illust. by Pauline Baynes. Reviewed by Nancy-Lou Patterson. Owen Barfield and C.S. Lewis. Owen Barfield. Reviewed by Nancy-Lou Patterson. A Christian for All Christians: Essays in Honour of C.S. Lewis. Andrew Walker and James Patrick, Ed.. Reviewed by Nancy-Lou Patterson. The Hobbit. J.R.R. Tolkien, Illus. by David Wenzel, Adapted by Charles Dixon and Sean Deming. Reviewed by Glen GoodKnight. The Mind of the Maker. Dorothy L. Sayers. Reviewed by Nancy-Lou Patterson. The Pattern in the Web: The Mythical Poetry of Charles Williams. Roma A. King, Jr.. Reviewed by Nancy-Lou Patterson. The Land of Narnia. Biran Sibley, Illus. by Pauline Baynes. Reviewed by Glen GoodKnight. Dangerous By Degrees: Women at Oxford and the Somerville Novelists. Susan J. Leonardi. Reviewed by Nancy-Lou Patterson. The 1991 J.R.R. Tolkien Calendar. Illust. by John Howe. Reviewed by Bruce Leonard

    Statistical switching kinetics in ferroelectrics

    Full text link
    By assuming a more realistic nucleation and polarization reversal scenario we build a new statistical switching model for ferroelectrics, which is different from either the Kolmogorov-Avrami-Ishibashi (KAI) model or the Nucleation-Limited-Switching (NLS) model. After incorporating a time-dependent depolarization field this model gives a good description about the retardation behavior in polycrystalline thin films at medium or low fields, which can not be described by the traditional KAI model. This model predicts correctly n=1 for polycrystalline thin films at high Eappl or ceramic bulks in the ideal case

    Spin accumulation created electrically in an n-type germanium channel using Schottky tunnel contacts

    Full text link
    Using high-quality Fe3_{3}Si/n+n^{+}-Ge Schottky-tunnel-barrier contacts, we study spin accumulation in an nn-type germanium (nn-Ge) channel. In the three- or two-terminal voltage measurements with low bias current conditions at 50 K, Hanle-effect signals are clearly detected only at a forward-biased contact. These are reliable evidence for electrical detection of the spin accumulation created in the nn-Ge channel. The estimated spin lifetime in nn-Ge at 50 K is one order of magnitude shorter than those in nn-Si reported recently. The magnitude of the spin signals cannot be explained by the commonly used spin diffusion model. We discuss a possible origin of the difference between experimental data and theoretical values.Comment: 4 pages, 3 figures, To appear in J. Appl. Phy
    • …
    corecore