Present Address:

Research Group for Spin-Energy Science,
Advanced Science Research Center,
Japan Atomic Energy Agency,
Tokai, Ibaraki 319-1195, JAPAN
E-mail: onishi.hiroaki [-AT-] jaea.go.jp
 〒319-1195 茨城県那珂郡東海村大字白方2番地4
日本原子力研究開発機構
先端基礎研究センター
スピン-エネルギー科学研究グループ
E-mail: onishi.hiroaki [-AT-] jaea.go.jp

Introduction:

I am a research scientist working on condensed matter theory. I am broadly interested in:
  • strongly correlated electron systems
  • orbital physics
  • itinerant ferromagnetism
  • low-dimeisional magnetism
  • geometrical frustration
  • transport properties of nanostructures
  • cold atoms in optical lattices
  • computational physics
  • quantum computation

More specifically, I have studied spin-orbital ordering and its dynamics in strongly correlated electron systems with orbital degeneracy, itinerant ferromagnetism, and quantum spin magnetism in low dimensions. I have tackled these research subjects by exploiting various numerical methods such as DMRG, time-dependent DMRG, dynamical DMRG, exact diagonalization, thermal pure quantum state, and QMC loog algorithm.

Topics: