Fumio Hiroshima | Last modified date：2020.01.24 |

Professor /
Department of Mathematics /
Faculty of Mathematics

**Presentations**

1. | 廣島文生, Schroedinger operators on lattice, Second Summer School: Various aspects of mathematical physics, 2017.07, [URL], The spectrum of Schroedinger operator and non-local Schroedinger operator defined on lattice is discussed.. |

2. | 廣島 文生, Time operator associated with Schroedinger operators, QUTIS, 2016.09. |

3. | 廣島 文生, Threshold ground state of the semi-relativistic Pauli-Fierz Hamiltonian,Aarhus university, Aarhus大学コロキウム, 2016.02. |

4. | 廣島 文生, Analysis of ground state of quantum field theory by Gibbs measures, International Congress of Mathematical Physics(ICMP) 2015, 2015.08. |

5. | 廣島 文生, Spectrum of semi-relativistic QED by a Gibbs measure, The 51 winter school of theoretical physics(Karpacz Winter Schools in Theoretical Physics), 2015.02. |

6. | Fumio Hiroshima, Functional integral approach to mathematically rigorous quantum field theory, TJASSST2013, 2013.11. |

7. | Fumio Hiroshima, Gibbs measure approach to spin-boson model , International conference on stochastic analysis and applications, 2013.10. |

8. | 廣島 文生, Spectrum of non-commutative harmonic oscillator and related models, , 2013.09. |

9. | 廣島 文生, Enhanced binding for quantum field models , 2013.03. |

10. | Feynman-Kac type formula with cadlag path and generalized Schroedinger operator with spin. |

11. | , [URL]. |

12. | Asymptotic fields and ground states of quantum field models. |

13. | Spectral analysis of Schrodinger operators coupled to a qunatm field. |

14. | Spectral analysis of partcles interacting through quantum fields. |

15. | Enhanced binding and mass renormalization of QED'. |

16. | Effective mass and its mass renormalization of nonrelativistic QED. |

17. | Degenerate ground states of QED. |

18. | Self-adjointness of the Pauli-Fierz model for arbitrary coupling constants. |

19. | Self-adjointness of the Pauli-Fierz Hamiltonian for arbitrary values of coupling constants. |

20. | Spectral analysis of atoms interacting with a quantized radiation field. |

21. | Analysis of the Pauli-Fierz model for arbitrary coupling constant. |

22. | Ground states of a system interacting with a radiation field: existence, uniqueness and expression. |

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