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Local correlation effects on the s+-- and s++-wave superconductivities mediated by magnetic and orbital fluctuations in the 5-orbital Hubbard model for iron pnictides
Jun Ishizuka, Takemi Yamada, Yuki Yanagi +1
We investigate the electronic state and the superconductivity in the 5-orbital Hubbard model for iron pnictides by using the dynamical mean-field theory in conjunction with the Eli…
Metal-insulator transition and superconductivity in the two-orbital Hubbard-Holstein model for iron-based superconductors
Takemi Yamada, Jun Ishizuka, Yoshiaki Ōno
We investigate a two-orbital model for iron-based superconductors to elucidate the effect of interplay between electron correlation and Jahn-Teller electron-phonon coupling by usin…
First Systematic Search for Oxygen-Line Blobs at High Redshift: Uncovering AGN Feedback and Star-Formation Quenching
Suraphong Yuma, Masami Ouchi, Alyssa B. Drake +8
We present the first systematic search for extended metal-line [OII]λλ3726,3729 nebulae, or [OII] blobs (OIIBs), at z=1.2 using deep narrowband imaging with a survey volume of 1.9x…
An Intensely Star-Forming Galaxy at z~7 with Low Dust and Metal Content Revealed by Deep ALMA and HST Observations
Masami Ouchi, Richard Ellis, Yoshiaki Ono +10
We report deep ALMA observations complemented with associated HST imaging for a luminous (m_uv=25) galaxy, `Himiko', at a redshift z=6.595. The galaxy is remarkable for its high st…
Evolution of Star Formation in the UKIDSS Ultra Deep Survey Field - I. Luminosity Functions and Cosmic Star Formation Rate out to z=1.6
Alyssa B. Drake, Chris Simpson, Chris A. Collins +11
We present new results on the cosmic star formation history in the SXDS-UDS field out to z=1.6. We compile narrow-band data from the Subaru Telescope and the Visible and Infrared S…
Anomalous Flux Quantization in the Spin-Imbalanced Attractive Hubbard Ring
Kazuhiro Sano, Yoshiaki Ono
We investigate the one-dimensional Hubbard ring with attractive interaction in the presence of imbalanced spin populations by using the exact diagonalization method. The singlet pa…