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| Curriculum Vitae |
| B.S. (1991), M.S. (1993) and Ph.D. degrees (1996) in Physics from Department of Physics, Kyoto University. Post-Doctoral fellow at Laboratoire Kaster-Brossel of Ecole Normale Superieure, Max Planck Institut fur Quantenoptik, School of Engineering, University of Tokyo, at Physics Department of the Pennsylvania State University, and Researcher of PRESTO, Japan Science and Technology Agency. At present, Associate Professor at Graduate School of Human and Environmental Studies, Kyoto University. |
−Field of interests−
Laser cooling, Condensed Matter Physics with ultra cold atoms |
−Hobby−
Football (playing and watching), History |
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| Introduction of the project |
| A number of devices have been developed so far through the controls of electrons in solids. Substituting the atoms for electrons and controlling them produces atom analogs of electronic devices which have been expected to grow up into a new technology, atomtronics, in the future. The atom with numerous internal states available and fully controlled by laser lights can be used as a medium of information, which opens up possibilities of quantum computation and quantum simulation. A precise matter wave interferometer built in integrated atomic circuits may provide practical applications over wide ranges.
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Quantum degenerate gases in optical lattices are new quantum states of matters with a perfect controllability of almost parameters which characterize the systems. Its studies have seen remarkable progress in recent years. The results include useful ideas for loading a single atom into each lattice site and controlling atomic motion. |
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The multiple Josephson junction of atoms consisting of several potential wells created by optical traps may be applied for the flow control of atoms. The Josephson current of atoms could be controlled by tunneling rates, non-linear self-trapping effects and biasing potential wells with a combination of the mixing Feshbach resonance which varies the strength of interactions between the atoms in the particular magnetic sublevels. A transistor-like behavior, in which a great number of the atom currents can be controlled by a very small number of atoms, becomes a building block of more complicated atomtronic circuits.
Optical lattices with a long decoherence time and no defects also provide a better environment for matter waves, which allows such applications as creations of bright solitons, guided matter wave interferometers and very precise force sensors. So far atom chips have been intensively studied for atomtronics. In this project, by utilizing various phenomena of Bose condensed gases in optical lattices, I will develop the fundamental basics for atomtronics.
Currently, I am constructing a new BEC machine at KyotoUniversity. |
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