84 citations · 284 across the 6 of their papers we have counts for
9 papers
Parametric control of a superconducting flux qubit
S. Saito, T. Meno, M. Ueda +3
Parametric control of a superconducting flux qubit has been achieved by using two-frequency microwave pulses. We have observed Rabi oscillations stemming from parametric transition…
Single-Shot Readout of Macroscopic Quantum Superposition State in a Superconducting Flux Qubit
Hirotaka Tanaka, Shiro Saito, Hayato Nakano +3
Single-shot readout experiments were performed on the two lowest-energy states of a superconducting qubit with three Josephson junctions embedded in a superconducting loop. We meas…
Multiphoton transitions in a macroscopic quantum two-state system
S. Saito, M. Thorwart, H. Tanaka +4
We have observed multiphoton transitions between two macroscopic quantum-mechanical superposition states formed by two opposite circulating currents in a superconducting loop with…
Nambu-Goldstone Mode in a Rotating Dilute Bose-Einstein Condensate
Masahito Ueda, Tatsuya Nakajima
The Nambu-Goldstone mode, associated with vortex nucleation in a harmonically confined, two-dimensional dilute Bose-Einstein condensate, is identified with the lowest-lying envelop…
Einstein-Podolsky-Rosen correlation seen from moving observers
Hiroaki Terashima, Masahito Ueda
Within the framework of relativistic quantum theory, we consider the Einstein-Podolsky-Rosen (EPR) gedanken-experiment in which measurements of the spin are performed by moving obs…
Vortex Nucleation and Array Formation in a Rotating Bose-Einstein Condensate
Makoto Tsubota, Kenichi Kasamatsu, Masahito Ueda
We study the dynamics of vortex lattice formation of a rotating trapped Bose-Einstein condensate by numerically solving the two-dimensional Gross-Pitaevskii equation, and find that…