29 research outputs found
Linear and nonlinear coupling of quantum dots in microcavities
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
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
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
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
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
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 , , ,
, , ,
and . 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&