Nippon Telegraph and Telephone Corporation

Riken Corporation

Toyota Jidosha Kabushiki Kaisha

Yokohama National University

Hideki Gotoh

Hidetoshi Katori

Masao Takamoto

Katsuya Oguri

Atsushi Ishizawa

Hiromitsu Imai

Tsutomu Matsumoto

Hisashi Oguma

Tomokazu Moriya

Tsuyoshi Toyama

Tomoyo Akatsuka

Tomoya Akatsuka

A magneto-optical trap method including applying a magnetic field to an atom encapsulated in a vacuum vessel and having a nuclear spin of not less than 3/2 by using an anti-Helmholtz coil. Then generating a laser beam including a first laser beam detuned from a first resonance frequency when the atom transits from a total angular momentum quantum number F in a ground state to a total angular momentum quantum number F'=F+1 in an excited state, and a second laser beam detuned from a second resonance frequency when the atom transits from the total angular momentum quantum number F in the ground state to a total angular momentum quantum number F′=F−1 in the excited state.

Magneto-optical trap method and apparatus using positive and negative g-factors

A magneto-optical trap apparatus includes a vacuum vessel for encapsulating an atom to be trapped, an anti-Helmholtz coil for applying a magnetic field to an inside of the vacuum vessel, a laser device for generating a laser beam, and an irradiation device for irradiating the generated laser beam from a plurality of directions. The laser beam includes a first laser beam detuned from a first resonance frequency when the atom transits from a total angular momentum quantum number F in a ground state to a total angular momentum quantum number F'=F+1 in an excited state, and a second laser beam detuned from a second resonance frequency when the atom transits from the total angular momentum quantum number F in the ground state to a total angular momentum quantum number F&#x2032;=F&#x2212;1 in the excited state, among transitions from J=0 in a ground state to J&#x2032;=1 in an excited state.

Disclosed is a system for detecting an attack, which includes a server and a plurality of vehicles capable of wirelessly communicating with each other. Each of the vehicles has a sensor, a sensor information acquisition unit, a traffic information reception unit, and a transmission unit that transmits the sensor information and the traffic information to the server. The server has a reception unit that receives the sensor information and the traffic information from the vehicles, a verification unit that verifies whether the sensor information and the traffic information are inconsistent with each other, and a notification unit that notifies, when the sensor information and the traffic information are inconsistent with each other, the vehicles of the inconsistency.

System and method for detecting attack when sensor and traffic information are inconsistent

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Tokyo, Japan

Hideki Gotoh