RESEARCH

My research interests have concentrated upon the bosonic and fermionic excitations of quantized vortices and topological defects. I studied the Kelvin and Tkachenko waves of vortices in gaseous Bose-Einstein condensates (BEC's) and topological defects in spinor BEC's. Then I moved to the study of the BCS-BEC crossover regime, where I have pointed out the possibility of Fulde-Ferrell-Larkin-Ovchinnikov states and clarified the quantum nature of core-bound quasiparticles in the presence of population imbalance of two-component fermions.

I'm now working on problem of the stability of half-quantized vortices (HQV) in superfluid ³He in a slab geometry. I'm also interested in the chiral and helical edge states, which appear along the surface of both the ABM and BW phases in ³He. The chiral (helical) edge state gives rise to the spontaneous mass (spin) flow in time-reversal breaking (invariant) superfluids. The HQV and edge states are as a consequence of non-trivial topological properties which arise in the bulk of ³He, while they accompany the Majorana zero mode or fermion, leading to the non-Abelian statistics and novel transport properties.

EDUCATION

2000

Bachelor of Science (Physics), Okayama University

2005

Ph.D. in Science, Graduate School of Natural Science and Technology, Okayama University

PROFESSIONAL EXPERIENCE

2004

Assistant, Faculty of Science, Okayama University

2008

Assistant Professor, Department of Fundamental Physical Science, Okayama University

2014-Present

Associate Professor, Department of Materials Engineering Science, Osaka University

SELECTION OF PUBLICATIONS

"Symmetry Protected Topological Order and Spin Susceptibility in Superfluid ³He-B",
T. Mizushima, M. Sato, and K. Machida,
Phys. Rev. Lett. 109, 165301 (2012).

"Superfluid ³He in a restricted geometry with a perpendicular magnetic field",
T. Mizushima,
Phys. Rev. B 86 094518 (2012).

"Odd-frequency Cooper-pair amplitude around a vortex core in a chiral p-wave superconductor in the quantum limit",
T. Daino, M. Ichioka, T. Mizushima, and Y. Tanaka,
Phys. Rev. B 86, 064512 (2012).

"Stable Skyrmions in SU (2) Gauged Bose-Einstein Condensates",
T. Kawakami, T. Mizushima, M. Nitta, and K. Machida,
Phys. Rev. Lett. 109, 015301-1-5 (2012).

"Vortex structures and zero energy states in the BCS-to-BEC evolution of p-wave resonant Fermi gases",
T. Mizushima and K. Machida,
Physical Review A 81, 053605(1)-(14) (2010).

"Role of the Majorana Fermion and the Edge Mode in Chiral Superfluidity near a p-Wave Feshbach Resonance",
T. Mizushima, M. Ichioka, and K. Machida,
Physical Review Letters 101, 150409(1)-(4)(2008).

"Majorana Bound State in Rotating Superfluid ³He-A between Parallel Plates",
Y. Tsutsumi, T. Kawakami, T. Mizushima, M. Ichiokda, and K. Machida,
Physical Review Letters 101, 135302(1)-(4) (2008).

"Topological Structure of a Vortex in Fulde-Ferrell-Larkin-Ovchinnikov states",
T. Mizushima, K. Machida, and M. Ichioka,
Physical Review Letters 95, 117003(1)-(4) (2005).

"Direct Imaging of Spatially Modulated Superfluid Phases in Atomic Fermion Systems",
T. Mizushima, K. Machida, and M. Ichioka,
Physical Review Letters 94, 060404(1)-(4) (2005).