138 citations · 229 across the 6 of their papers we have counts for
6 papers
Non-Markovianity in High-Dimensional Open Quantum Systems using Next-generation Multicore Optical Fibers
Santiago Rojas-Rojas, Daniel Martínez, Kei Sawada +5
With the advent of quantum technology, the interest in communication tasks assisted by quantum systems has increased both in academia and industry. Nonetheless, the transmission of…
Microscope for X-ray orbital angular momentum imaging
Yoshiki Kohmura, Kei Sawada, Masaichiro Mizumaki +2
Orbital angular momentum (OAM) of photons is carried upon the wave front of an optical vortex and is important in physics research due to its fundamental degree of freedom. As for…
Results of a Search for Paraphotons with Intense X-ray Beams at SPring-8
T. Inada, T. Namba, S. Asai +5
A search for paraphotons, or hidden U(1) gauge bosons, is performed using an intense X-ray beamline at SPring--8. "Light Shining through a Wall" technique is used in this search. N…
Dynamical Diffraction Theory for Wave Packet Propagation in Deformed Crystals
Kei Sawada, Shuichi Murakami, Naoto Nagaosa
We develop a theory for the trajectory of an x ray in the presence of a crystal deformation. A set of equations of motion for an x-ray wave packet including the dynamical diffracti…
Optical Magnetoelectric Effect in Multiferroic Materials: Evidence for a Lorentz Force Acting on a Ray of Light
Kei Sawada, Naoto Nagaosa
We theoretically propose that the optical analog of a Lorentz force acting on a ray of light is realized in multiferroic materials such as GaFeO showing the magnetoelectric eff…
Gigantic Enhancement of Magneto-Chiral Effect in Photonic Crystals
Kei Sawada, Naoto Nagaosa
We theoretically propose a method to enhance dramatically a magneto-chiral(MC) effect by using the photonic crystals composed of a multiferroic material. The MC effect, the directi…