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論文リスト

2013

  • "Dynamics of ion loading into a linear Paul trap using an inductively coupled plasma mass spectrometer"
    M. Kitaoka, K. Jung, Y. Yamamoto, T. Yoshida and S. Hasegawa
    J. Anal. Atom. Spectrom. 28, 1648-1654 (2013).
  • "Trapping and laser cooling of trace Ca+ isotopes injected from an inductively coupled plasma mass spectrometer"
    M. Kitaoka, T. Yoshida, Y. Yamamoto, K. Jung, S. Hasegawa
    J. Anal. At. Spectrom. 28, 1292-1297 (2013).

2012

  • "Hydrogen Compounds Formation of Calcium in an ICP-DRC-MS"
    K. Jung, T. Yoshida and S. Hasegawa
    J. Anal. At. Spectrom. 27, 131-136 (2012)
  • "Isotope-selective manipulation of Ca+ using laser heating and cooling in a linear Paul trap"
    M. Kitaoka and S. Hasegawa
    J. Phys. B: At. Mol. Opt. Phys. 45, 165008 (2012).

2011

  • "Observation of sympathetically cooled 43Ca+ ions in a linear ion trap"
    Y. Hashimoto, M. Kitaoka, T. Yoshida and S. Hasegawa
    Appl. Phys. B: Lasers and Opt. 103, 339-344 (2011).
  • "Determination of the temperature of bremsstrahlung photon generated by ultraintense laser using various thickness attenuators"
    S. Hasegawa, R. Takashima, M. Todoriki, S. Kikkawa, K. Soda,
    K. Takano, Y. Oishi, T. Nayuki, T. Fujii and K. Nemoto
    Rev. Sci. Instrum. 82, 033301 (2011).

2009

  • "The pushing gate in a planar Coulomb crystal using a flat-top laser beam"
    M. Kitaoka, I.M. Buluta and S. Hasegawa
    Phys. Lett. A 373, 2911 (2009).
  • "The structure of planar Coulomb crystals in RF traps"
    I.M. Buluta and S. Hasegawa
    J. Phys. B: At. Mol. Opt. Phys. 42, 154004 (2009).
  • "Designing an ion trap for quantum simulation"
    I.M. Buluta and S. Hasegawa
    Quantum Information and Computation 9, 361 (2009).
  • "Isotope selective manipulation and observation of Ca+ ions by ion trap-laser cooling technique"
    Y. Hashimoto, D. Nagamoto, S. Hasegawa
    Int. J. Mass Spectrom. 279, 163-169 (2009).

2008

  • "Planar Coulomb bicrystals"
    I. M. Buluta and S. Hasegawa
    Phys. Rev. A 78, 042340 (2008).
  • "Hard x-ray generation by low energy, tightly focused laser pulses"
    K. Takano, K. Nemoto, T. Nayuki, Y. Oishi, T. Fujii, A Zhidkov, E. Hotta, M. Todoriki, and S. Hasegawa
    Appl. Phys. Lett. 92, 251502 (2008).
  • "Investigation of planar Coulomb crystals for quantum simulation and computation"
    I. M. Buluta, M. Kitaoka, S. Georgescu, and S. Hasegawa
    Phys. Rev. A 77, 062320 (2008).
  • "Observation of single Ca+ ions for trace isotope analysis"
    Y. Hashimoto, L. Matsuoka, D. Nagamoto, S. Hasegawa
    Spectrochimica Acta B63, 645-651 (2008).

2007

  • "Two-color resonance ionization spectroscopy of highly excited titanium atoms"
    Leo Matsuoka and Shuichi Hasegawa
    J. Opt. Soc. Am. B 24, 2562 (2007).
  • "Estimation of the heating rate of ions due to laser fluctuations when implementing quantum algorithms"
    S. Fujiwara and S. Hasegawa
    Quantum Information and Computation 7, 573 (2007).
  • "1s(2s2p 1P)2Pnl, 1s(2s3s 3,1S)2Snp, and 1s(2s3p 1P)2Pns K-shell photoexcited
    Rydberg series of beryllium atoms"
    Fumiko Yoshida, Fumihiro Koike, Satoshi Obara, Yoshiro Azuma, Tetsuo Nagata, and Shuichi Hasegawa
    Phys. Rev. A 75, 012714 (2007).
  • "Efficient quantum logic with cold trapped ions for maximally entangled states"
    S.Fujiwara, H.Osaki, I.M.Buluta, and S.Hasegawa
    Phys. Rev. A 75, 012301 (2007).

2006

  • "Two-color resonance ionization spectroscopy of Rydberg states of hafnium atoms"
    Leo Matsuoka and Shuichi Hasegawa
    Phys. Rev. A 74, 062515 (2006).
  • "Numerical evaluation of nuclide analysis of 129I, 90Sr, and 137Cs using bremsstrahlung high energy x ray generated by ultrashort pulse laser"
    Ryuta Takashima, Masaru Todoriki, Shuichi Hasegawa, Koshichi Nemoto and Kazuyuki Kato
    J. Appl. Phys. 100, 064906 (2006).
  • "Trapping Laser Ablated Ca+Ions in Linear Paul Trap"
    Yoshinori Hashimoto, Leo Matsuoka, Hiroyuki Osaki, Yu Fukushima and Shuichi Hasegawa
    Jpn. J. Appl. Phys. 45, 7208 (2006).
  • "Photoexcitation of K-shell and L-shell Hollow Beryllium"
    Shuichi Hasegawa, Fumiko Yoshida, Leo Matsuoka, Fumihiro Koike, Stephan Fritzsche, Satoshi Obara, Yoshiro Azuma and Tetsuo Nagata
    Phys. Rev. Lett. 97, 023001 (2006).
  • "Analysis of 1s(2s2p 3P)nl Rydberg states in the K-shell photoionization of the Be atom"
    Fumiko Yoshida, Leo Matsuoka, Ryuta Takashima, Tetsuo Nagata, Yoshiro Azuma, Satoshi Obara, Fumihiro Koike and Shuichi Hasegawa
    Phys. Rev. A 73, 062709 (2006).
  • "Quantum Games in ion traps"
    Iulia Maria Buluta, Shingo Fujuwara and Shuichi Hasegawa
    Phys. Lett. A 358, 100 (2006).
  • "Development of Ion Trap Technique for Rare Isotope Measurement"
    Shuichi Hasegawa, Leo Matsuoka, Yu Fukushima, Hiroyuki Osaki and Yoshinori Hashimoto
    J. Nucl. Sci. Tech. 43, 300 (2006).
  • "Obsevation of perturbed 3snp double photoexcited Rydberg series of beryllium atoms"
    Fumiko Yoshida, Leo Matsuoka, Hiroyuki Osaki, Satoshi Kikkawa, Yu Fukushima, Tetsuo Nagata, Yoshiro Azuma, Satoshi Obara and Shuichi Hasegawa
    Phys. Rev. A 73, 042709 (2006).

2005

  • "Scalable networks for discrete quantum random walks"
    S.Fujiwara, H.Osaki, I.M.Buluta and S.Hasegawa
    Phys. Rev. A 72, 032329 (2005).
  • "Temporal fluctuation of singular values caused by dynamical noise in chaos"
    Masaru Todoriki, Hiroyuki Nagayoshi and Atsuyuki Suzuki
    Phys. Rev. E 72, 036207 (2005).
  • "General method for realizing the condiditional phase-shift gate and a simulation
    of Grover's algorithm in an ion-trap system"
    Shingo Fujiwara and Shuichi Hasegawa
    Phys. Rev. A 71, 012337 (2005).
  • "Possibility of transmutation of 135Cs by ultraintense laser"
    R. Takashima, S. Hasegawa, K. Nemoto and K. Kato
    Appl. Phys. Lett. 86, 011501 (2005).