Shigemasa MATSUO(Term:2010/11/15-2013/3/31)
Researcher, Graduate School of Integrated Arts and Sciences, Hiroshima University- Field of Specialty：
- Theoretical low temperature physics
- Topics of Research：
- (B01) Novel Edge Phenomena in Spin-Triplet Superfluids
RESEARCH
I have investigated non-uniform superconducting states. An example of such non-uniform states is the Fulde-Ferrell state, which is realized in high magnetic fields and is characterized by a finite center-of-mass momentum of the Cooper pair. When I was a graduate student, I studied the mixing effect of anisotropic order parameters in the Fulde-Ferrell state. After that, I have studied surface and impurity scattering effects in the non-uniform states. Recently, I am interested also in quantum information science.
In this project, I will investigate physics of odd-frequency Cooper pairs which appear near the surfaces of spin-triplet superfluids.
EDUCATION
- 1990
- Bachelor of Science (Physics), Faculty of Science, Yamaguchi University
- 1992
- Master of Science, Okayama University
- 1995
- Ph.D. (Science), Hiroshima University
SELECTION OF PUBLICATIONS
"Theory of damped Rabi oscillations at finite temperatures",
S. Matsuo, T. Fujii, N. Kosugi, N. Hatakenaka,
Journal of Physics: Conference Series 150, p.02205 (2009).
"Theory of soliton-based control of coupled super conducting phase qubits",
S. Matsuo, K. Furuta, T. Fujii, K. Nagai, N. Hatakenaka,
Solid State Sciences 11, p.942 (2009).
"Fluxon-based gate controls of capacitively coupled flux-based-phase qubits",
S. Matsuo, K. Furuta, T. Fujii, K. Nagai, N. Hatakenaka,
Appl. Phys. Lett. 91, p.093103 (2007).
"Generation of macroscopic entangled states in coupled superconducting phase qubits",
S. Matsuo, S. Ashhab, T. Fujii, F. Nori, K. Nagai, N. Hatakenaka,
J. Phys. Soc. Jpn. 76, p.05480 (2007).
"Fulde-Ferrell-Larkin-Ovchinnikov state in thin films with rough surfaces",
S, Matsuo, S. Higashitani, K. Nagai,
AIP Conf. Proc. 850, p.733 (2006).
"Phase diagram of the Fulde-Ferrell-Larkin-Ovchinnikov state in a three dimensional superconductor",
S. Matsuo, S. Higashitani, Y. Nagato, K. Nagai,
J. Phys. Soc. Jpn. 67, p.280 (1998).
"A nonuniform state in a d-wave superconductor under magnetic field ",
S. Matsuo, H. Shimahara, K. Nagai,
J. Phys. Soc. Jpn. 64, p.371 (1995).
"Order parameter Mixing effect in the Fulde-Ferrell state",
S. Matsuo, H. Shimahara, K. Nagai,
J. Phys. Soc. Jpn. 63, p.2499 (1994).
