314 citations · 574 across the 9 of their papers we have counts for
9 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…
Photoionization loss in simultaneous magneto-optical trapping of Rb and Sr
Takatoshi Aoki, Yuki Yamanaka, Makoto Takeuchi +2
We demonstrate the simultaneous magneto-optical trapping (MOT) of Rb and Sr and examine the characteristic loss of Rb in the MOT due to photoionization by the cooling laser for Sr.…
Locking Local Oscillator Phase to the Atomic Phase via Weak Measurement
Nobuyasu Shiga, Makoto Takeuchi
We propose a new method to reduce the frequency noise of a Local Oscillator (LO) to the level of white phase noise by maintaining (not destroying by projective measurement) the coh…
Photon subtraction from traveling fields - recent experimental demonstrations
Jonas S. Neergaard-Nielsen, Makoto Takeuchi, Kentaro Wakui +4
We review our most recent results on application of the photon subtraction technique for optical quantum information processing primitives, in particular entanglement distillation…
Optical continuous-variable qubit
Jonas S. Neergaard-Nielsen, Makoto Takeuchi, Kentaro Wakui +4
In a new branch of quantum computing, information is encoded into coherent states, the primary carriers of optical communication. To exploit it, quantum bits of these coherent stat…