9,984 research outputs found

    Calderon multiplicative preconditioner for the PMCHWT equation applied to chiral media

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    In this contribution, a Calderon preconditioned algorithm for the modeling of scattering of time harmonic electromagnetic waves by a chiral body is introduced. The construction of the PMCHWT in the presence of chiral media is revisited. Since this equation reduces to the classic PMCHWT equation when the chirality parameter tends to zero, it shares its spectral properties. More in particular, it suffers from dense grid breakdown. Based on the work in [1], [2], a regularized version of the PMCHWT equation is introduced. A discretization scheme is described. Finally, the validity and spectral properties are studied numerically. More in particular, it is proven that linear systems arising in the novel scheme can be solved in a small number of iterations, regardless the mesh parameter

    Time's Arrow, March 31, 1998

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    This is the concert program of the Time's Arrow performance on Tuesday, March 31, 1998 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue. Works performed were For Tōru by Lukas Foss, Water-Ways by Tōru Takemitsu, Meditation for Viola and Strings by Ronald Maltais, and L'histoire du Soldat by Igor Stravinsky. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

    Boston University Symphony Orchestra, April 27, 1993

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    This is the concert program of the Boston University Symphony Orchestra performance on Tuesday, April 27, 1993 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue. Works performed were Pavane by Gabriel Fauré, Thrumpet Concerto in E-flat major, H. VIIe:1 by Franz Joseph Haydn, and Pictures at an Exhibition (Orchestrated by Maurice Ravel) by Modest Mussorgsky. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

    Boston University Symphony Orchestra, Tuesday, October 6, 1998

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    This is the concert program of the Boston University Symphony Orchestra performance on Tuesday, October 6, 1998 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts. Works performed were Symphony No. 3 in E-flat major, Op. 55, "Eroica" by Ludwig van Beethoven and Symphony No. 4, Op. 29 "The Inextinguishable" by Carl Nielsen. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

    Boston University Symphony Orchestra, February 16, 1995

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    This is the concert program of the Boston University Symphony Orchestra performance on Thursday, February 16, 1995 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts. Works performed were Le Baiser de la fée (The Fairy's Kiss) by Igor Stravinsky, Pohjola's Daughter by Jean Sibelius, and La Mer by Claude Debussy. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

    Faculty concert: Michelle LaCourse, November 16, 1998

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    This is the concert program of the Faculty Concert of Michelle LaCourse performance on Monday, November 16, 1998 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts. Works performed were Possessed by John Steinmetz, Sonata for Viola and Piano by George Rochberg, Elegy by Elliott Carter, and Chocolates (torch songs for viola and piano) by James Grant. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

    Rabi oscillations and macroscopic quantum superposition states

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    A two-level atom interacting with a single radiation mode is considered, without the rotating-wave approximation, in the strong coupling regime. It is shown that, in agreement with the recent results on Rabi oscillations in a Josephson junction (Y. Nakamura, Yu. A. Pashkin and J. S. Tsai, Phys. Rev. Lett. {\bf 87}, 246601 (2001)), the Rabi frequency is indeed proportional to first kind integer order Bessel functions in the limit of a large number of photons and the dressed states are macroscopic quantum superposition states. To approach this problem analytically use is made of the dual Dyson series and the rotating-wave approximation.Comment: 7 pages, revtex, no figures. I have to thank Kazuyuki Fujii for pointing me out some corrections to introduce into the paper. Besides, the title and the nomenclature has been changed in agreement to editorial requirements. Finally, the correct citation for the paper by Nakamura et al. has been introduce

    Boston University Wind Ensemble, December 7, 1995

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    This is the concert program of the Boston University Wind Ensemble performance on Thursday, December 7, 1995 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts. Works performed were Circuits by Cindy McTee, Symphony No. 6 for Band by Vincent Persichetti, Old Wine in New Bottles by Gordon Jacob, The Path Between the Mountains by Jay Kennedy, Suite of Old American Dances by Robert Russell Bennet, and Rolling Thunder by Henry Fillmore. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

    Faculty concert: Andres Diaz, cello, and Judith Gordon, guest artist, piano

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    This is the concert program of the Faculty Concert performance on Thursday, March 20, 1997 at 8:00 p.m., at the Tsai Performancev Center, 685 Comonwealth Avenue. Works performed were Sonata for Piano and Cello, Op. 102, No. 2 by Ludwig van Beethoven, Sonata for Piano and Cello in D minor, Op. 40 by Dmitri Shostakovich, Metamorphosis for Piano and Cello by Witold Lutoslawski, and Sonata for Piano and Cello by Frederic Chopin. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

    Young Composers Write for ALEA III, March 24, 1990

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    This is the concert program of the Young Composers Write for ALEA III performance on Saturday, March 24, 1990 at 7:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts. Works performed were Teh by Jean Hasse, Domino Effect by David Rakowski, Arabesque by Pasquale Tassone, Jeweled Light by Todd Brief, Komvos by Thanasis Rikakis, Cruikshank Fantasy by David Cleary, and Sinfoniette for Chamber Orchestra by Periklis Koukos. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund
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