Akira Shojiguchi (Dr. Sci.)

Research Interest

• Optical Control of Chemical Reactions by using Optical Near Fields
• Nonequilibrium Statistical Physics
• Dynamics of Chemical Reactions
• Near-Field Optics

Address

• Complex System Laboratory, Department of Physucs, Faculty of Science
• Nara Women's University
• Nara, 630-8506, Japan
• Tel: +81-742-20-3409
• fax: +81-742-20-3409
• email: shojiguchi(at mark)ki-rin.phys.nara-wu.ac.jp

Papers

• A. Shojiguchi, C.B. Li, T. Komatsuzaki, and M. Toda,
  "Fractional behavior in multidimensional Hamiltonian systems describing reactions"
  Phys. Rev. E 76, 056205 (2007) PDF
   
• A. Shojiguchi, C.B. Li, T. Komatsuzaki, and M. Toda,
  "Fractional behavior in nonergodic reaction processes of isomerization"
  Phys. Rev. E (rapid communications), Vol.75, 035204(R) (2007) PDF
  KEYWORDS:3DOF, Arnold web, sub-diffusion, 1/f-spectrum,Cantorus
  
• C.B. Li, A. Shojiguchi, M. Toda, and T. Komatsuzaki,
  "Definability of no-return transition states in high energy regime above reaction threshold"
  Phys. Rev. Lett. 97, 028302 (2006) PDF
  KEYWORDS: 3DOF reaction system, Normally hyperbolic invariant manifold, bifurcation,resonance
  
• A. Shojiguchi, C.B. Li, T. Komatsuzaki, and M. Toda,
  "Dynamical Foundation and Limitation of Statistical Reaction Theory"
  Comm. Nonl. Sci. Num. Simul. Volume 13, Issue 5, July 2008, Pages 857-867 PDF
  KEYWORDS: 3DOF reaction system, Arnold web,sub-diffusion, inhomogeneity of action space
  
• C.B. Li, A. Shojiguchi, M. Toda, and T. Komatsuzaki,
  "Dynamical Hierarchy in Transition States of Reactions",
  Few-Body Systems 38 (2006) 173-179 PDF
  
• A. Shojiguchi, A. Baba, C.B. Li, T. Komatsuzaki, and M. Toda,
  "Wavelet Analysis and Arnold Web Picture for Detecting Energy Transfer in Hamiltonian Dynamical System"
  Laser, Phys. (Russia) 16 (2006) 1-9 PDF(gray) PDF(color) KEYWORDS: Arnold web picture, wavelet transform, intramolecular vibrational energy redistribution
  
• A. Shojiguchi, T. Tanaka, and M. Okada,
  "Estimation of convergence conditions of the Linear CDMA Detection Algorithm Based on Statistical Neurodynamics",
  (preprint) PDF
  KEYWORDS: code-division multiple-access (CDMA) parallel interference canceler (PIC), statistical neurodynamics, SCSNA analysis, Onsager term
  
• A. Shojiguchi, T. Tanaka, and M. Okada,
  "Linear CDMA Detection Algorithm Based on Statistical Neurodynamics and Belief Propagation and the Stability Conditions",
  Prog. Theor. Phys. Suppl. 157 (2005) 258-261 PDF
  KEYWORDS: BPSK(two valued)-CDMA channel, parallel interference canceler (PIC), belief propagation, statistical neurodynamics, replica symmetry solutions with the Gaussian prior
   
• A. Shojiguchi, T. Tanaka, A. Mizutani, T. Mizuno, and M. Okada,
  "Improving the performance of linear parallel interference cacellation for CDMA using a method of the statistical mechanics"
  Proceedings. International Symposium on Information Theory(ISIT 2004). PDF web
  KEYWORDS: BPSK(two valued)-CDMA channel, parallel interference canceler (PIC),statistical neurodynamics, Onsager term
   
• A. Shojiguchi, K. Kobayashi, S. Sangu, K. Kitahara, and M. Ohtsu,
  "Superradiance and dipole ordering of an N two-level system"
  J. Phys. Soc. Japan 72 (2003) 2984 PDF
  KEYWORDS: Nearfield optics, Quantum dots system, Localized photon model, exiton dynamics, Superradiance, tight binding bosson model
  
• A. Shojiguchi, K. Kobayashi, S. Sangu, K. Kitahara, and M. Ohtsu,
  "Superradiant multiple pulses from excitons interacting with optical near fields"
  Trans. MRS Japan 28 (2003) 1031
  
• A. Shojiguchi, K. Kitahara, K. Kobayashi, and M. Ohtsu,
  "A method for controlling the spins of atoms using optical near fields"
  J. Microscopy 210 (2002) 301 PDF
  KEYWORDS: Evanescent field, Carniglia-Mandel modes expansion, Crebsh-Gordon coefficient
  
• A. Shojiguchi, K. Kobayashi, S. Sangu, K. Kitahara, and M. Ohtsu,
  "Coherent dipole oscillation induced by localized photons"
  Nonlinear Optics 29 (2002) 563 Web web
  KEYWORDS: Nearfield interaction, Quantum dots system, Localized photon model, exiton dynamics, dipole ordering
  
• S. Sangu, K. Kobayashi, A. Shojiguchi, and M, Ohtsu,
  "Logic and functional operations using a near-field optically coupled quantum-dot system"
  Phys. Rev. B 69 (2004) 115334 PDF
  KEYWORDS: Nearfield optics, Nanooptical switching system, Quantum dots,Yukawa-field model
  
• S. Sangu, K. Kobayashi, T. Kawazoe, A. Shojiguchi, and M. Ohtsu,
  "Quantum-coherence effect in a quantum dot system coupled by optical near fields"
  Trans. MRS Japan 28 (2003) 1035
  
• K. Kobayashi, S. Sangu, A. Shojiguchi, T. Kawazoe, K. Kitahara, and M. Ohtsu,
  "Excitation dynamics in a three-quantum-dot system driven by optical near-field interaction: towards a nanometric photonic device"
  J. Microscopy 210 (2002) 247 PDF
  
• S. Sangu, K. Kobayashi, A. Shojiguchi, T. Kawazoe, and M, Ohtsu,
  "Excitation energy transfer and population dynamics in a quantum dot system induced by optical near-field interaction"
  J. Appl. Phys 93 (2002) 2937 web
  
• S,Tasaki and A.Shojiguchi,
  "Behaviours of the correaltion functions in the ergodic classical dynamical system"
  (Lecture note of S. Tasaki at Tokyo Institute of Technology (1995)
  Bussei Kenkyu 64-3 (1995) 199 (in Japanese)
  KEYWORDS: hyperbolic dynamical system, Kolmogorov-Sinai entropy, Sinai-Ruelle-Bowen invariant measure, Ruelle-Pollicot resonance, complex spectral theory, Gelfant triplet, escape rate formula

Books

• "Theoretical research of interaction between optical near fields and quantum dots"
  Progress in Nano Electro-Optics III, M. Ohstu (Ed.)
  (Springer-Verlag, New York, 2005) PDF
  A. Shojiguchi, K. Kobayashi, S. Sangu, K. Kitahara, and M. Ohtsu
  KEYWORDS: Nearfield optics, Quantum dots system, Localized photon model, Superradiance
  
• "Theory and Operation Principles of Nanophotonic Functional Devices"
  Progress in Nano Electro-Optics V, M. Ohstu (Ed.)
  (Springer-Verlag, NewYork, 2006) PDF
  S. Sangu, K. Kobayashi, A. Shojiguchi, T. Kawazoe, and M. Ohtsu
  KEYWORDS: Nearfield optics, Nanooptical switching system, Quantum dots,Yukawa-field model

Conference

• A. Shojiguchi, C.B. Li, T. Komatsuzaki, and M. Toda,
  
• A. Shojiguchi, C.B. Li, T. Komatsuzaki, and M. Toda,
  "Action space structures rule the reaction rate in nonergodic reaction systems",
  Symposium on Atoms, Molecules, and Clusters in Intense Laser Fields, Presentation,
  (Mar. 11, 2006, Univ. of Tokyo, Japan)
   
• A. Shojiguchi, C.B. Li, T. Komatsuzaki, and M. Toda,
  "Investigation of the non-Ergodic effects in chemical reactions by means of the time series analysis",
  Complexified Dynamics, Chaos and Tunnelling,
  (Aug. 25 to Sept. 1, 2005, Ritsumeikan Univ., Japan) Abstruct in PDF
   
• A. Shojiguchi, C.B. Li, T. Komatsuzaki, and M. Toda,
  "Phase Space Inhomogeneity in the potential basin relevant to chemical reactions",
  Telluride Science Research Center 2005 Workshops: Vibrational Dynamics in Gas and Condensed Phases,
  (Aug. 7 to Aug.13, 2005, Telluride, USA) Presentation,
  
• A. Shojiguchi, A. Baba, and T. Komatsuzaki, M. Toda,
  "Wavelet Analysis of motion on the Arnold Web",
  Telluride Science Research Center 2005 Workshops: Energy Landscapes, Dynamics and Optimization
  (Jul. 24 to Aug.6, 2005, Telluride, USA) Presentation, Program and Photos
   
• A. Shojiguchi, A. Baba, and T. Komatsuzaki, M. Toda,
  "Time series analysis of motions on the Arnold web",
  The fourteenth annual International Laser Physics Workshop (LPHYS'05) Abseruct in PDF, Presentation,
  (Jul. 4 to 8, 2005, Kyoto, Japan)
   
• A. Shojiguchi, C.B. Li, T. Komatsuzaki, and M. Toda,
  "A study of dynamical process from a well to another using time series analysis",
  International Symposium on Atoms, Molecules, and Clusters in Intense Laser Fields 2,
  (Jan. 24 to 25, 2005, Univ. of Tokyo, Japan)
   
• A. Shojiguchi, T. Tanaka, A. Mizutani, and M. Okada,
  "Enlargement of convergence region of bit error rates of linear parallel interference cancellation for CDMA"
  Statistical Physics of Disordered Systems and its Applications
  2004 (July 12 - 15, 2004, Hayama, Japan). Presentation,
  KEYWORDS: BPSK(two valued)-CDMA channel,belief propagation, statistical neurodynamics, AT-stability
  
• A. Shojiguchi, T. Tanaka, A. Mizutani, T. Mizuno, and M. Okada,
  "Improving the performance of linear parallel interference cacellation for CDMA using a method of the statistical mechanics"
  2004 IEEE International Symposium on Information Theory pp.530 Abstruct in PDF, Presentation,
  (June 27 - July 2, 2004, Chicago, USA)
  KEYWORDS: BPSK(two valued)-CDMA channel, parallel interference canceler (PIC),statistical neurodynamics, SCSNA analysis, Onsager term
   
• A. Shojiguchi and K. Kitahara,
  "Comment on a controlling method of spins of atoms with optical near fields",
  The 7th International Conference on Near-field Optics and Related Techniques, pp.155 PDF
  (Aug. 2002, Univ. of Rochester, USA)
   
• A. Shojiguchi, K. Kobayashi,S. Sangu, K. Kitahara, and M. Ohtsu,
  "Manifestation of an electric dipole order induced by optical near fields",
  The 7th International Conference on Near-field Optics and Related Techniques, pp.137 PDF
  (Aug. 2002, Univ. of Rochester, USA)
  
• A. Shojiguchi, K. Kobayashi, S. Sangu, K. Kitahara, and M. Ohtsu,
  "Excitation transfer by optical near-field interaction",
  3RD Asia-Pacific Workshop on Near-field Optics, pp.82
  (Dec. 2001, Univ. of Melbourne, Australia)
   
• S. Sangu, K. Kobayashi, A. Shojiguchi, M. Ohtsu,
  "Functional operations using a near-field optically coupled quantum-dot system"
  (Aug. 2003, IEEE-Nano2003, San Francisco, USA)
   
• S. Sangu, K. Kobayashi, T. Kawazoe, A. Shojiguchi, M. Ohtsu,
  "A nanophotonic switch: transient dynamics and switching operation",
  2003 Quantum Electronics and Laser Science Conference (QELS 2003)
  (Jun. 2003, Baltimore, USA)
   
• S. Sangu, K. Kobayashi, T. Kawazoe, A. Shojiguchi, M. Ohtsu,
  "Dynamics of energy transfer in an optically controlled and coupled quantum-dot system",
  in Program & Abstracts of the Second International Workshop on Quantum Nonplanar Nanostructures & Nanoelectronics 2002
  (Sep. 2002, Tsukuba, Japan)
   
• S. Sangu, K. Kobayashi, A. Shojiguchi, M. Ohtsu,
  "Characteristics of relaxation process in an optically coupled quantum-dots system",
  in Technical Digest of 2002 Quantum Electronics and Laser Science Conference (QELS 2002)
  (May 2002, Long Beach, USA)
   

Presentation in Japanese

• A. Shojiguchi, C.B. LI, and T. Komatsuzaki, M. Toda,
  "Nonergodicity in HCN isomerization reaction",
  The Physical Society of Japan 61th Annual Meeting 2006 Presentation,
  (Mar. 27, 2006, Matsuyama, Japan).
   
• A. Shojiguchi, A. Baba, and T. Komatsuzaki, M. Toda,
  "Time series analysis of motion on Arnold web",
  The Physical Society of Japan 60th Annual Meeting 2005 Presentation,
  (Mar. 27, 2005, Chiba, Japan).
   
• A. Shojiguchi, T. Tanaka, and M. Okada,
  "The connection between the stability of the algorithm of the CDMA detection based on the Belief propagation and the de Almeida-Thouless stability"
  Nonlinear Seminar at the laborartory of Complex systems in Tokyo Metropolitan University, Presentation,
  (Aug. 2, 2004, Department of Physics, Tokyo Metropolitan University, Japan).
   
• A. Shojiguchi, T. Tanaka, A. Mizutani, and M. Okada,
  "Effect of the Onsager term on convergence region of bit error rates of linear parallel interference cancellation for CDMA"
  The Physical Society of Japan 59th Annual Meeting 2004 Abstruct in PDF, Presentation,
  (Mar. 30, 2004, Hukuoka, Japan).
   
• A. Shojiguchi, T. Tanaka, A. Mizutani, and M. Okada,
  "Improving the performance of the linear parallel interference canceller for CDMA with a method of statistical neurodynamics"
  General Conference of Institute of Electronics, Information and Communication Engineers 2004 Abstruct in PDF, Presentation,
  (Mar. 22, 2004, Tokyo Institute of Technology, Japan).
   

LINK

• Komatsuzaki Group at Kobe Univ.

• Toda Group at Kobe Univ.