日本語
The University of Electro-Communications 
Graduate School of Informatics and Engineering, School of Informatics and Engineering 
"Department of Computer and Network Engineering, Cluster II (Emerging Multi-interdisciplinary Engineering)" 

Assistant Professor 
HIROYASU TAJIMA 

Academic degrees
博士(理学)  The University of Tokyo 

Current research areas
Mathematical physics/ Fundamental condensed matter physics 
Atomic/Molecular/Quantum electronics 

Current research subjects
リソース理論に基づく量子測定・操作の統一的限界  2019/04/01-Present 

Published papers
Paper  No  Superconducting-like heat current: Effective cancellation of current-dissipation trade off by quantum coherence  Hiroyasu Tajima, Ken Funo  arxiv preprint  arXiv:2004.13412, 1-17  2020/04/28  URL 
Paper  Yes  Universal limitations on implementing resourceful unitary evolutions  Joint  Ryuji Takagi, Hiroyasu Tajima  Physical Review A  101/ 2, 022315-1-022315-10  2020/02/12 
Paper  No  Coherence-variance uncertainty relation and coherence cost for quantum measurement under conservation laws  Hiroyasu Tajima, Hiroshi Nagaoka  arxiv preprint  arXiv:1909.029, 1-12  2019/09/06  URL 
Paper  No  Coherence cost for violating conservation laws  Hiroyasu Tajima, Naoto Shiraishi, Keiji Saito  arxiv preprint  arXiv:1906.04076, 1-23  2019/06/10  URL 
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Research presentations
Oral presentation for an academic conference  coherence cost for measurement and computation under conservation laws  Quantum Information Processing 2020 (QIP2020)  2020 year/ 1st day  Yes  2020/01/06 
Oral presentation for an academic conference  測定実装のためのコヒーレンス・コストの漸近等式: Wigner-Araki-Yanase theoremの改善  日本物理学会  2019年/ 秋  Yes  田島裕康  2019/09/12 
Oral presentation for an academic conference  Fundamental exchange rate between coherence and asymmetry  Quantum Information and String Theory 2019  3rd week/ 2nd day  Yes  Hiroyasu Tajima  2019/06/11 
Invited lecture for an international conference  Limitation on quantum information processing under conservation laws  APPC2019(14Th ASIA-PACIFIC PHYSICS CONFERENCE)  Yes  Hiroyasu Tajima  2019/11 
Invited lecture for a domestic conference  量子計算機はどれだけのコヒーレンスを必要とするか?:保存則による原理的限界値の解析  NICT open summit 2019  No  田島裕康  2019/07/04 
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Educational support at other universities
非常勤講師  集中講義:保存則のもとでの量子操作・測定への制限 (京都大学にて)  2019/11-Present 
非常勤講師  集中講義:保存則のもとでの量子操作・測定への制限 (大阪市立大学にて)  2019/09-Present 
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