Title:
GYROSCOPE AND ANGLE MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2019/077829
Kind Code:
A1
Abstract:
The present invention reduces measurement time. A gyroscope according to the present invention comprises a planar ion trap unit, a microwave irradiation unit, a laser irradiation unit, and a measurement unit. The planar ion trap unit has two rf electrodes and two DC electrode rows and forms ion traps for capturing single ions on a substrate having a z direction normal to the surface thereof. The rf electrodes are disposed on the substrate along the x direction at a prescribed interval. The DC electrode rows are disposed on the substrate along the x direction so as to sandwich the two rf electrodes. The DC electrode rows have at least five DC electrodes in the x direction. The trapped ions are spaced so as not to interfere with each other. The microwave irradiation unit irradiates π/2 microwave pulses onto the ions. The laser irradiation unit changes the amount of movement of the ions in the x direction. The measurement unit observes the internal states of the ions and measures an angle.
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Inventors:
KOZUMA MIKIO (JP)
INOUE RYOTARO (JP)
MUKAIYAMA TAKASHI (JP)
TANAKA UTAKO (JP)
MORIMOTO SEIICHI (JP)
YOSHIOKA KAZUNORI (JP)
TANAKA ATSUSHI (JP)
KAMINO YUICHIRO (JP)
INOUE RYOTARO (JP)
MUKAIYAMA TAKASHI (JP)
TANAKA UTAKO (JP)
MORIMOTO SEIICHI (JP)
YOSHIOKA KAZUNORI (JP)
TANAKA ATSUSHI (JP)
KAMINO YUICHIRO (JP)
Application Number:
PCT/JP2018/027828
Publication Date:
April 25, 2019
Filing Date:
July 25, 2018
Export Citation:
Assignee:
TOKYO INST TECH (JP)
UNIV OSAKA (JP)
JAPAN AVIATION ELECTRONICS IND LTD (JP)
MITSUBISHI HEAVY IND LTD (JP)
UNIV OSAKA (JP)
JAPAN AVIATION ELECTRONICS IND LTD (JP)
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
G01C19/58
Foreign References:
| JP2007085957A | 2007-04-05 | |||
| JP2000155028A | 2000-06-06 |
Other References:
W. C. CAMPBELL ET AL.: "Rotation sensing with trapped ions", JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS, vol. 50, no. 6, 23 February 2017 (2017-02-23), pages 64002, XP020314174, ISSN: 0953-4075, DOI: 10.1088/1361-6455/aa5a8f
TANAKA UTAKO ET AL.: "Design of a surface electrode trap for parallel ion strings", JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS, vol. 47, no. 3, 16 January 2014 (2014-01-16), pages 35301, XP020256997, ISSN: 0953-4075, Retrieved from the Internet [retrieved on 20181011], DOI: 10.1088/0953-4075/47/3/035301
W C CAMPBELLP HAMILTON: "Rotation sensing with trapped ions", JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS, vol. 50, 2017, pages 064002
J. MIZRAHIC. SENKOB. NEYENHUISK. G. JOHNSONW. C. CAMPBELLC.W. S. CONOVERC. MONROE: "Ultrafast Spin-Motion Entanglement and Interferometry with a Single Atom", PHYSICAL REVIEW LETTERS, PRL, vol. 110, 2013, pages 203001
U. TANAKAK. MASUDAY. AKIMOTOK. KODAY. IBARAKIS. URABE: "Micromotion compensation in a surface electrode trap by parametric excitation of trapped ions", APPL PHYS B, vol. 107, 2012, pages 907 - 912, XP035077399, DOI: 10.1007/s00340-011-4762-2
UTAKO TANAKAKENSUKE SUZUKIYUKI IBARAKISHINJI URABE: "Design of a surface electrode trap for parallel ion strings", JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS, vol. 47, 2014, pages 035301
See also references of EP 3683544A4
TANAKA UTAKO ET AL.: "Design of a surface electrode trap for parallel ion strings", JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS, vol. 47, no. 3, 16 January 2014 (2014-01-16), pages 35301, XP020256997, ISSN: 0953-4075, Retrieved from the Internet
W C CAMPBELLP HAMILTON: "Rotation sensing with trapped ions", JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS, vol. 50, 2017, pages 064002
J. MIZRAHIC. SENKOB. NEYENHUISK. G. JOHNSONW. C. CAMPBELLC.W. S. CONOVERC. MONROE: "Ultrafast Spin-Motion Entanglement and Interferometry with a Single Atom", PHYSICAL REVIEW LETTERS, PRL, vol. 110, 2013, pages 203001
U. TANAKAK. MASUDAY. AKIMOTOK. KODAY. IBARAKIS. URABE: "Micromotion compensation in a surface electrode trap by parametric excitation of trapped ions", APPL PHYS B, vol. 107, 2012, pages 907 - 912, XP035077399, DOI: 10.1007/s00340-011-4762-2
UTAKO TANAKAKENSUKE SUZUKIYUKI IBARAKISHINJI URABE: "Design of a surface electrode trap for parallel ion strings", JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS, vol. 47, 2014, pages 035301
See also references of EP 3683544A4
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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