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- Masafumi Toyama

# Professor Masafumi Toyama

Area and Subject Taught | Quantum InfoPhysics |
---|---|

Research Theme(s) | Quantum Information Physics and Principles of Quantum Mechanics |

Academic Degrees | Doctor of Science, Kyoto Sangyo University |

Keywords for Research Field | Quantum InfoPhysics Mathematical physics |

Office Phone Number | 81-75-705-1898 |

## Research Overview

I am conducting theoretical research on problems in quantum information physics.

## Notable Publications and Works in the Last Three Years

### 論文 Journals:

- On the definition of the time evolution operator for time-independent Hamiltonians in non-relativistic quantum mechanics, Am. J. of Phys, (2017) 85 692-697 (2017).
- Numerical method for the solution of the Schrödinger equation with source terms or time-dependent potential, Phys. Rev. E90 06309-1~12 (2014).
- Analytic time-dependent solutions of the one-dimensional Schrödinger equation, Am. J. of Phys.,
**82**955-961 (2014). - Comment on ‘Overcoming misconceptions in quantum mechanics with the time evolution operator’, Eur. J, of Phys.
**34**, L73-L75 (2013). - Quantum search with certainty based on modified Grover algorithms: Optimum choice of parameters, Quantum Information Processing
**12**, 1897-1914 (2013). - One-dimensional point interaction with Griffths' boundary condition, Can. J. Phys.
**90**, 383-389 (2012). - Confinement limit of a Dirac particle in two and three dimensions, Phys. Lett. A
**374**, 3838-3840 (2010). - Confinement limit of the Dirac particle in one dimension, Phys. Rev. A
**81**, 044106-1-044106-4 (2010). - Minimum uncertainty wave packet in relativistic quantum mechanics, Am. J. of Phys.
**78**, 176-180 (2010). - Unusual situations that arise with the Dirac delta function and its derivative, Rev. Bras. de Ensino de Fisica
**31**, 4302-1-4302-7 (2009). - Matched-multiphase Grover algorithm for a small number of marked states, Phys. Rev. A
**79**, 014301-1-014301-4 (2009). - One-dimensional point interaction with three complex parameters, J. of Phys. A: Math. and Theor.
**41**, 235306-235317 (2008). - Multiphase matching in the Grover algorithm, Phys. Rev. A
**77**, 042324-1-042324-1 (2008). - The time-dependent Schrödinger equation: The need for the Hamiltonian to be Selfadjoint, Braz. J. of Phys.
**38**, 178-188 (2008). - Transmission-reflection problem with a potential of the derivative form of the delta function, J. of Phys. A: Math. and Theor.
**40**, F685-F690 (2007). - Accurate numerical solutins of the time-dependent Schrödinger equation, Phys. Rev. E
**75**, 036707-1-036707-10 (2007). - Energy-dependent point interaction: Self adjointness, Can. J. of Phys.
**84**, 991-1005 (2006).

### 著書, 紀要, 編著:

- Developments in Language Theory (Lecture Notes in Computer Science 5257), Proceedings of the 12th International Conference, DLT2008, Kyoto, Japan, September 2008, LNCS 5257, 2008.（ 共編）
- Development of a High-resolution Fast Gamma-ray Imager for the New-generation PET III, 先端科学技術研究所所報,
**6**(7) (2007) 65-82. - Novel Scheme for Lane-Bates' blind deconvolution: Determinant conditions for the zeros of blurs and a simple algorithm for eliminating blurs, 先端科学技術研究所所報,
**6**(7) (2007) 83-103. - Remote control and surveillance systems that utilize virtual instrument technology, the Internet and a cellular phone, 先端科学技術研究所所報,
**5**(7) (2006) 23-84.