研究者業績

小林 浩二

コバヤシ コウジ  (Koji Kobayashi)

基本情報

所属
上智大学 理工学部 機能創造理工学科 特別研究員
学位
博士(理学)(2011年9月 上智大学)
修士(理学)(2009年3月 上智大学)
学士(理学)(2007年3月 上智大学)

研究者番号
10711905
ORCID ID
 https://orcid.org/0000-0001-7223-607X
J-GLOBAL ID
201301051911685803
Researcher ID
U-1205-2019
researchmap会員ID
7000004743

外部リンク

専門は物性理論物理学。
乱れた系における量子輸送現象の数値計算を主なテーマとしており、 特にトポロジカル量子系で見られる特殊な伝導特性や量子臨界現象について研究を行っています。
豊富なプログラミング経験に基づく高速・高精度の計算技術が持ち味です。
また、研究指導や教材作りなど、教育にも力を入れています。


委員歴

 1

論文

 22

MISC

 28

書籍等出版物

 2
  • Koji Kobayashi, Tomi Ohtsuki, Ken-Ichiro Imura (担当:分担執筆, 範囲:Chapter 4: Topological Matter in the Absence of Translational Invariance)
    Wiley-Scrivener 2019年4月9日 (ISBN: 9781119407294)
    Topological properties are sometimes emergent or enforced by the breaking of translational invariance. Here, in this chapter we discuss dimensional crossover of topological properties in thin films of topological insulators (TI) and Weyl semimetals, electronic properties on the surface of TI nanoparticles and TI nanowires as a constrained electronic system. To discuss the effects of disorder is another highlight of this chapter. We cast on the unusual robustness of Dirac and Weyl semimetal phases against disorder, then the discussion is turned to a novel type of quantum criticality emergent from this unusual robustness, leading us to formulate the scaling theory of semimetal-metal transition. The concept of topological matter dose not fade under circumstances of absent translational invariance; it is on the contrary, emergent or enforced under such circumstances.
  • Koji Kobayashi, Tomi Ohtsuki, Ken-Ichiro Imura (担当:共著)
    Wiley online library 2019年3月12日 (ISBN: 9781119407317)
    Topological properties are sometimes emergent or enforced by the breaking of translational invariance. Here, in this chapter we discuss dimensional crossover of topological properties in thin films of topological insulators (TI) and Weyl semimetals, electronic properties on the surface of TI nanoparticles and TI nanowires as a constrained electronic system. To discuss the effects of disorder is another highlight of this chapter. We cast on the unusual robustness of Dirac and Weyl semimetal phases against disorder, then the discussion is turned to a novel type of quantum criticality emergent from this unusual robustness, leading us to formulate the scaling theory of semimetal-metal transition. The concept of topological matter dose not fade under circumstances of absent translational invariance; it is on the contrary, emergent or enforced under such circumstances.

講演・口頭発表等

 68

担当経験のある科目(授業)

 1

所属学協会

 1

共同研究・競争的資金等の研究課題

 4