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66 papers · 1 filter
Dual -1 Hahn polynomials: "classical" polynomials beyond the Leonard duality
Satoshi Tsujimoto, Luc Vinet, Alexei Zhedanov
We introduce the -1 dual Hahn polynomials through an appropriate limit of the dual q-Hahn polynomials. These polynomials are orthogonal on a finite set of discrete point…
Electromagnetic response of a metamaterial with field-gradient-induced transparency
Yasuhiro Tamayama, Toshihiro Nakanishi, Yasuhiro Wakasa +3
We investigate a dynamically controllable electromagnetically induced transparency-like metamaterial. The unit structure of the metamaterial consists of a low-quality-factor resona…
Enhancement of second harmonic generation in a doubly resonant metamaterial
Tetsuo Kanazawa, Yasuhiro Tamayama, Toshihiro Nakanishi +1
We investigate second harmonic (SH) generation in a doubly resonant metamaterial. We show that SH generation can be enhanced when the resonant condition is satisfied for the SH fre…
Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2
R. Okazaki, T. Shibauchi, H. J. Shi +6
A second-order phase transition is characterized by spontaneous symmetry breaking. The nature of the broken symmetry in the so-called "hidden order" phase transition in the heavy f…
The discovery of geomagnetically trapped cosmic ray antiprotons
O. Adriani, G. C. Barbarino, G. A. Bazilevskaya +61
The existence of a significant flux of antiprotons confined to Earth's magnetosphere has been considered in several theoretical works. These antiparticles are produced in nuclear i…
Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
T2K Collaboration, K. Abe, N. Abgrall +408
The T2K experiment observes indications of appearance in data accumulated with protons on target. Six events pass all selection criteria at…