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| Research
Directors |
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Prof. Yoshihisa
Yamamoto
Stanford
University/National Institute of Informatics |
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Prof. Serge
Haroche
Ecole Normale
Superieure/College of France |
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Counterpart Organization: French National Center for
Scientific Research (CNRS)/Ecole Normale Superieure
(France)
Supporting National Agency: CNRS |
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| Currently, by manipulating a single atom,
a single electron and a single photon, or by utilizing quantum
correlations between several particles, a research on trying
to overcome the limitations on classical computers and the
communications has become active. In this project, we aimed
at defining the essence of quantum correlations (entanglement)
by employing various experimental methods such as quantum
optics and the nuclear magnetic resonance, and also establishing
a core technology of quantum information systems. |
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| We had proposed a method for efficiently
emitting a single photon by enhancing resonance of a single
quantum dot with a micro-resonator field. By conducting an
experiment of quantum key distribution with such a single
photon source, we were convinced that the transmission speed
is not decelerated over a long distance. In addition, we proposed
all-silicon quantum computers that uses the spin of an atomic
nucleus in solid crystals as a qubit, and conceived initializing,
reading and writing to the spin of an atomic nucleus; we experimentally
confirmed those processes. Furthermore, we have achieved a
record of information-storage period in a quantum register.
We gained various achievements that will be applied to future
quantum information and communications. |
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