Ozawa Group

Welcome to Ozawa group at Advanced Institute for Materials Research (AIMR) in Tohoku University!

The group in April, 2022

We are a theoretical physics research group, studying an intersection between condensed matter physics and atomic, molecular, and optical physics.

What's new

• June 2, 2022: Bruno's collaboration paper with experimentalists on topology and quantum metrology is on arXiv! arXiv:2206.00546
• May 20, 2022: Bruno's paper on the model complexity in statistical manifolds is published in IEEE Transactions on Information Theory!
• May 20, 2022: A paper on band structures under periodic non-Hermitian potentials is publisihed in Physical Review B! Phys. Rev. B 105, 174108 (2022)
• May 18, 2022: Bruno's new paper on quantum metric of degenerate bands is now on arXiv: arXiv:2205.07900
• May 12, 2022: A paper on measurement of Quantum Fisher information is published in npj Quantum Information. The experiment is done in Huazhong University of Science and Technology.
• May 6, 2022: A paper on the measurement of the adiabatic non-Hermitian Berry phase is now on arXiv! This work is a collaboration with Gadway group from UIUC and Price group from Birmingham. arXiv:2205.02700
• April 18, 2022: Research of the group is featured in this month's issue of a Japanese magazine Yano E plus.
• April 1, 2022: Ryo and Greta joined the group! Bill and Bruno finally arrived at Japan to properly join the group! Welcome all!
  Here is the full member list of the group.
• March 31, 2022: Ken has left the group to become Postdoctoral Researcher at RIKEN!
• March 2, 2022: New paper on band structures under periodic non-Hermitian potentials is on arXiv: arXiv:2203.00247
• February 1, 2022: Bruno joined the group. Welcome Bruno!
• January 31, 2022: Experimental collaboration on the realization of synthetic dimensions in silicon photonics has been published in Science Advances!
  Press Release from Universities (in Japanese): Yokohama National University; Tohoku University; University of Tokyo; Keio University
  Press Release in Other Media: EurekAlert!; Phys.org; SciTechDaily; Copernical; Nanowerk; Tech Explorist, etc...
  Related Media Coverage: VICE
• January 19, 2022: Tomoki contributed a section to "Roadmap on Topological Photonics" which is now on arXiv, arXiv:2201.06315, and will be published in JPhys Photonics!
• December 6, 2021: Ken's collaboration paper with Kyoto University on quantum walk is on arXiv: arXiv:2112.03167
• November 15, 2021: Ken's paper is published in Phys. Rev. Research as Editor's Suggestion! Phys. Rev. Research 3, 043112 (2021)
• September 28, 2021: A paper "Engineering geometrically flat Chern bands with Fubini-Study Kähler structure" with Bruno Mera is published in Physical Review B!
• September 21, 2021: Tomoki wrote an article for Suri-Joshi, a website for promoting women in mathematics. "Mathematics and Physics -- Topology and Insulators and My Research Life (in Japanese)"
• September 1, 2021: Bill joined the group. Welcome Bill!
• August 3, 2021: Ken's new paper on nonlinear Floquet topological edge states is on arXiv: arXiv:2108.00649
• July 21, 2021: Collaboration with Gadway group at the University of Illinois and Price group from Birmingham on synthetic mechanical lattices is now on arXiv: arXiv:2107.09649
• July 20, 2021: New paper with Bruno Mera on Chern insulators and quantum geometry is on arXiv: arXiv:2107.09039
• July 2, 2021: Two papers on Chern insulators and the quantum volume are published in Physical Review B!
  Phys. Rev. B 104, 045103 (2021) and Phys. Rev. B 104, 045104 (2021)
• May 31, 2021: New paper on realization of a synthetic dimension in a silicon ring-resonator is now on arXiv: arXiv:2105.13742. This is an experimental work done in collaboration with Yokohama National University and the University of Tokyo.
• May 19, 2021: Tomoki is now Tohoku University Distinguished Researcher!
• May 4, 2021: A paper on topological laser published in APL Photonics
• April 6, 2021: Tomoki receives The Young Scientists' Award, The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology!
• April 1, 2021: Ken joined the group. Welcome Ken!
• March 31, 2021: Feature Issue on Photonic Topological Materials in Optical Materials Express, in which Tomoki served as a guest editor, has been published online!
• March 23, 2021: Two new papers about Chern insulators and the quantum volume are now on arXiv: arXiv:2103.11582 and arXiv:2103.11583
• March 19, 2021: Tomoki's paper Artificial magnetic field for synthetic quantum matter without dynamical modulation has been published in Physical Review A! The paper is open access!
• March 12, 2021: Tomoki receives 15th (2021) Young Scientist Award of the Physical Society of Japan (Division 1)!
• January 14, 2021: Research of Tomoki has been featured in an Israeli popular magazine "Epoch". Here is a link to a related news article from AIMR.
• January 2021: New website launched!
• February 2020: The group was born!