139 citations · 214 across the 5 of their papers we have counts for
5 papers
Continuous-variable qubit on an optical transverse mode
Makoto Takeuchi, Takahiro Kuga
Continuous-variable (CV) qubits can be created on an optical longitudinal mode in which quantum information is encoded by the superposition of even and odd Schroedinger's cat state…
A simplified 461-nm laser system using blue laser diodes and a hollow cathode lamp for laser cooling of Sr
Yosuke Shimada, Yuko Chida, Nozomi Ohtsubo +2
We develop a simplified light source at 461 nm for laser cooling of Sr without frequency-doubling crystals but with blue laser diodes. An anti-reflection coated blue laser diode in…
Holographic storage of multiple coherence gratings in a Bose-Einstein condensate
Yutaka Yoshikawa, Kazuyuki Nakayama, Yoshio Torii +1
We demonstrate superradiant conversion between a two-mode collective atomic state and a single-mode light field in an elongated cloud of Bose-condensed atoms. Two off-resonant writ…
Franson-type experiment realizes two-qubit quantum logic gate
Kaoru Sanaka, Karin Kawahara, Takahiro Kuga
Quantum computers promise great improvements in solving problems such as factoring large integers, simulating quantum systems, and database searching. Using a photon as a quantum b…
Mach-Zehnder Bragg interferometer for a Bose-Einstein Condensate
Yoshio Torii, Yoichi Suzuki, Mikio Kozuma +3
We construct a Mach-Zehnder interferometer using Bose-Einstein condensed rubidium atoms and optical Bragg diffraction. In contrast to interferometers based on normal diffraction, w…