29 research outputs found

    Linear and nonlinear coupling of quantum dots in microcavities

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    We discuss the topical and fundamental problem of strong-coupling between a quantum dot an the single mode of a microcavity. We report seminal quantitative descriptions of experimental data, both in the linear and in the nonlinear regimes, based on a theoretical model that includes pumping and quantum statistics.Comment: Proceedings of the symposium Nanostructures: Physics and Technology 2010 (http://www.ioffe.ru/NANO2010), 2 pages in proceedings styl

    Steady state entanglement of two coupled qubits

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    The maximum entanglement between two coupled qubits in the steady state under two independent incoherent sources of excitation is reported. Asymmetric configurations where one qubit is excited while the other one dissipates the excitation are optimal for entanglement, reaching values three times larger than with thermal sources. The reason is the purification of the steady state mixture (that includes a Bell state) thanks to the saturation of the pumped qubit. Photon antibunching between the cross emission of the qubits can be used to experimentally evidence the large degrees of entanglement.Comment: 7 pages, 5 figure

    Hartree-Fock-Bogoliubov solution of the pairing Hamiltonian in finite nuclei

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    We present an overview of the Hartree-Fock-Bogoliubov (HFB) theory of nucleonic superfluidity for finite nuclei. After introducing basic concepts related to pairing correlations, we show how the correlated pairs are incorporated into the HFB wave function. Thereafter, we present derivation and structure of the HFB equations within the superfluid nuclear density functional formalism and discuss several aspects of the theory, including the unitarity of the Bogoliubov transformation in truncated single-particle and quasiparticle spaces, form of the pairing functional, structure of the HFB continuum, regularization and renormalization of pairing fields, and treatment of pairing in systems with odd particle numbers.Comment: Contributed chapter in "50 Years of Nuclear BCS", edited by R. A. Broglia and V. Zelevinsky, references correcte

    Dark Night of the Soul: Catholic Articulations of Atomic Trauma in Seirai Yuichi\u27s Ground Zero, Nagasaki

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    This paper discusses how the Catholic faith of the hibakusha (atomic bomb victims), their families, and their community members shapes their understanding of the atomic bombing in Seirai Yuichi’s fiction work Ground Zero, Nagasaki. In re-emphasizing the preeminence of the individual atomic experience and moving away from the canonical Nagasaki atomic narratives of Nagai Takashi and Hayashi Kyoko, Seirai illuminates the essential role that familial connection to the faith plays in an individual’s personal belief and how that belief thus affects one’s interpretation of the bombing. When the bonds of family are broken, post-atomic faith begins to falter and survivors enter a Dark Night of the Soul in which, caught between belief and doubt, hope and trauma, they seek meaning. Seirai explores these moments of searching within this traumatic gray space in his text, illustrating how atomic warfare destroys the self of the faithless individual

    Special Libraries, January 1960

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    Volume 51, Issue 1https://scholarworks.sjsu.edu/sla_sl_1960/1000/thumbnail.jp

    The elemental composition of the Sun II. The iron group elements Sc to Ni

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    We redetermine the abundances of all iron group nuclei in the Sun, based on neutral and singly-ionised lines of Sc, Ti, V, Mn, Fe, Co and Ni in the solar spectrum. We employ a realistic 3D hydrodynamic model solar atmosphere, corrections for departures from local thermodynamic equilibrium (NLTE), stringent line selection procedures and high quality observational data. We have scoured the literature for the best quality oscillator strengths, hyperfine constants and isotopic separations available for our chosen lines. We find logϵSc=3.16±0.04\log \epsilon_\mathrm{Sc}=3.16\pm0.04, logϵTi=4.93±0.04\log \epsilon_\mathrm{Ti}=4.93\pm0.04, logϵV=3.89±0.08\log \epsilon_\mathrm{V}=3.89\pm0.08, logϵCr=5.62±0.04\log \epsilon_\mathrm{Cr}=5.62\pm0.04, logϵMn=5.42±0.04\log \epsilon_\mathrm{Mn}=5.42\pm0.04, logϵFe=7.47±0.04\log \epsilon_\mathrm{Fe}=7.47\pm0.04, logϵCo=4.93±0.05\log \epsilon_\mathrm{Co}=4.93\pm0.05 and logϵNi=6.20±0.04\log \epsilon_\mathrm{Ni}=6.20\pm0.04. Our uncertainties factor in both statistical and systematic errors (the latter estimated for possible errors in the model atmospheres and NLTE line formation). The new abundances are generally in good agreement with the CI meteoritic abundances but with some notable exceptions. This analysis constitutes both a full exposition and a slight update of the preliminary results we presented in Asplund, Grevesse, Sauval & Scott (arXiv:0909.0948), including full line lists and details of all input data we employed.Comment: 10 figures, 24 pages + 10 online-only pages of tables. v2. Matches version accepted by A&

    Picturing nuclear suffering:Raymond Briggs’s When the Wind Blows

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