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SASAKI Itaru

Academic OrganizationAcademic Assembly School of Science and Technology Institute of ScienceTEL
Education and Research OrganizationFaculty of Science Department of MathematicsFAX
PositionAssociate ProfessorMail Address
AddressAsahi3-1-1, Matsumoto, Nagano, JapanWeb sitehttp://math.shinshu-u.ac.jp/~isasaki/index.html

Profile

Research Field
Mathematical Physics
Current Subject
Mathematical Physics, Spectral analysis
Keywords:Quantum Theory , Spectral Analysis of Quantum Fields , Schrodinger Operator
Academic Societies
Academic Societies
The Mathematical Society of Japan
Academic Background
Graduate School
Hokkaido University , (Mathematics , Faculty of Science) , 2007
Hokkaido University , (Mathematics , Faculty of Science) , 2004

College
Gakushuin University , 2002
Research Career
Research Career
2008-2009
2007-2008
2006-2007

Overseas Education
2007-2008 , Princeton University

Research

Books, Articles, etc.
Articles
Embedded eigenvalues and Neumann-Wigner potentials for relativistic Schrödinger operators
2017(Aug. 15)
Author:József Lőrinczi and Itaru Sasaki


A mathematical analysis of dressed photon in ground state of generalized quantum Rabi model using pair theory
2017(Apr. 05)
Author:Masao Hirokawa, Jacob S Møller and Itaru Sasaki


Essential spectrum of the discrete Laplacian on a perturbed periodic graph
Journal of Mathematical Analysis and Applications,446(2):1863–1881 2017(Feb. 15)
Author:Itaru Sasaki, Akito Suzuki


Enhanced Binding of an N-particle System Interacting with a Scalar Field II. Relativistic Version
Publications of the Research Institute for Mathematical Sciences,51(4):655-690 2015
Author:Fumio Hiroshima, Itaru Sasaki


Spectral Analysis of the Dirac Polaron
Publications of the Research Institute for Mathematical Sciences,50(2):307-339 2014
Author:Itaru Sasaki


Spectral analysis of non-commutative harmonic oscillators: The lowest eigenvalue and no crossing
Journal of Mathematical Analysis and Applications,415(2):595-609 2014
Author:Hiroshima, F; Sasaki, I


Multiplicity of the lowest eigenvalue of non-commutative harmonic oscillators
Kyushu Journal of Mathematics,67(2):355-366 2013
Author:Hiroshima, F; Sasaki, I


Note on the spectrum of discrete Schrodinger operators
Journal of Math-for-Industry,4(2012B-4):105-108 2012
Author:Fumio Hiroshima, Itaru Sasaki, Tomoyuki Shirai, Akito Suzuki


Measure theoretical approach to recurrent properties for quantum dynamics
Journal of Physics A,44:465209 2011
Author:Yoshiki Otobe, Itaru Sasaki


Self-adjoint extensions of momentum operators: application of weak Weyl relations
Journal of Math-for-Industry,2(2010A-3):21-25 2010
Author:Fumio Hiroshima, Sotaro Kuribayashi, Itaru Sasaki


On the ionization energy of semi-relativistic Pauli-Fierzmodel for a single particle
Kokyuroku Bessatsu,B21:25-34 2010
Author:Fumio Hiroshima, Itaru Sasaki


Boltzmann Limit and Quasifreeness for a Homogeneous Fermi Gas in a Weakly Disordered Random Medium
Journal of Statistical Physics,132(2):329-353 2008
Author:Thomas Chen, Itaru Sasaki


Enhanced binding of an $N$-particle system interacting with a scalar bose field I
Mathematische Zeitschrift,259(3):657-680 2008
Author:Fumio Hiroshima, Itaru Sasaki


Schrodinger operators with rapidly oscillating potentials
Integral Equations and Operator Theory,58(4):563-571 2007
Author:Itaru Sasaki


Spectral properties of a Dirac operator in the chiral quark soliton model
Journal of Mathematical Physics,46:052305 2005
Author:Itaru Sasaki


Ground state of the massless Nelson model in a non-Fock representation
Journal of Mathematical Physics,46:102107 2005
Author:Itaru Sasaki


Ground state energy of the polaron in the relativistic quantum electrodynamics
Journal of Mathematical Physics,46:102307 2005
Author:Itaru Sasaki


Stability of discrete ground state
Hokkaido Mathematical Journal,34(3) 2005
Author:Tadahiro Miyao, Itaru Sasaki


Presentations
準相対論的 Pauli-Fierz モデルの基底状態について--粒子が質量を持たない場合--
Workshop on Analysis in Kagurazaka 2018 2018(Jan. 26)
Author:Itaru Sasaki


On the embedded eigenvalue of relativistic Schrödinger operator
Aarhus University, Math/Phys Seminar 2017(Dec. 06)
Author:Itaru Sasaki


Embedded Eigenvalue and von Neumann-Wigner Potential for the Relativistic Schrödinger Operator
University of Lorraine, Spectral Theory and Mathematical Physics 2017(May 18)
Author:Itaru Sasaki


Embedded Eigenvalues and Neumann-Wigner Potentials for Relativistic Schrödinger Operators
Physical and mathematical approaches to interacting particle systems -In honer of 70th birthday of Herbert Spohn- 2017(Jan. 12)
Author:Itaru Sasaki


Embedded Eigenvalue and von Neumann-Wigner Potential for the Relativistic Schrödinger Operator
Georgia Institute of Technology , Mathematical Results in Quantum Physics 2016(Oct. 10)
Author:Itaru Sasaki


Embedded Eigenvalues and Neumann-Wigner Potentials for Relativistic Schrödinger Operators
Loughborough University , Analysis Seminar 2016(Sep. 15)
Author:Itaru Sasaki


相対論的シュレディンガー作用素の埋蔵固有値について
北海道大学 , Mathematical Physics Seminar 2016(Mar. 23)
Author:Itaru Sasaki


On the Embedded Eigenvalue of Relativistic Schrödinger Operator
EGRET HIMEJI 4F , Himeji Conference on Partial Differential Equations 2016(Mar. 03)
Author:Itaru Sasaki


相対論的シュレディンガー作用素の埋蔵固有値の構成
Ehime University , Matsuyama Analysis Seminar 2016(Feb. 05)
Author:Itaru Sasaki

Research Grants
Grants‐in‐aid for Scientific Research(Research Representative)
2010 - 2013 , フェルミオンとボソンの相互作用系のスペクトル解析
2008 - 2009 , 量子電磁力学における電子の安定性の数学的研究
2006 - 2008 , 粒子と量子場が相互作用する系のスペクトル解析

Education

Lectures
2018 , Calculus I
2018 , Theory of heat and wave equations
2018 , Data Processing I
2018 , Partial Differential Equations and Quantum Theory
2018 , Calculus II
2017 , Data Processing I
2017 , Theory of heat and wave equations
2017 , Information Processing
2017 , Calculus I
2017 , Mathematical Modelling and Analysis
2017 , Calculus II
2016 , Data Processing I
2016 , Theory of heat and wave equations
2016 , Calculus I
2016 , Information Processing
2016 , Partial Differential Equations and Quantum Theory
2016 , Calculus II
2015 , Data Processing I
2015 , Theory of heat and wave equations
2015 , Freshmen Seminar
2015 , Information Processing
2015 , Variational Calculus and Analytical Mechanics
2015
2015 , Theory of Function Spaces
2014 , Information Processing
2014 , Data Processing I
2014 , Theory of heat and wave equations
2014 , Partial Differential Equations and Quantum Theory
2014 , Freshmen Seminar
2013 , Data Processing I
2013 , Theory of heat and wave equations
2012 , Data Processing I
2012 , Partial Differential Equations and Quantum Theory
2012 , Partial Differential Equations Ⅱ
2011 , Data Processing I
2011 , Statistical Mechanics
2010 , Data Processing I
2010 , Classical Mechanics II
2009 , Information Processing
2009 , Thermodynamics

Social Activities

Social Activitie
Organization of Conferences and/or Symposia
20171129 - 20171130 , 第6回信州関数解析シンポジウム , 世話人
20170107 - 20170109 , スペクトル・散乱 松本シンポジウム , 組織委員