Ozawa Group

Welcome to Ozawa group at Advanced Institute for Materials Research (AIMR) in Tohoku University!
We are a theoretical physics research group, studying an intersection between condensed matter physics and atomic, molecular, and optical physics.

The group in April, 2024
The group photo of April 2023.
The group photo of April 2022.

What's new

• October 10, 2024: Carlos Camacho, a Ph.D. student from University of Birmingham in UK, is visiting us for two months!
• September 23, 2024: Henning and Tomoki wrote a paper on geometric adiabatic amplification in non-Hermitian systems. Check it out at arXiv:2409.13595!
• September 6, 2024: Our note explaining the relation between the many-body Chern number and the Hall conductivity is now published in Comptes Rendus Physique!
• September 4, 2024: Paper proving the uniqueness of the lowest Landau level has now been published in Physical Review Research!
• August 22, 2024: Ryo's work on bulk-entanglement spectrum correspondence has been published in Physical Review Research!
• July 18, 2024: Greta's work on mean-chiral displacement in driven-dissipative systems has been published in Communications Physics!
• July 1, 2024: Professor Henning Schomerus from Lancaster University is visiting our group until the end of August!
• June 12, 2024: Collaboration with RMIT in Australia on a synthetic frequency dimension using a lithium niobate ring resonator is published in Communications Physics!
• June 5, 2024: Collaboration with Illinois and Birmingham on chiral solitary waves in an Aharonov-Bohm ring is now on arXiv! arXiv:2406.01732
• May 27, 2024: Bill's work on non-Hermitian many-body physics has been featured in the website of AIMR! AIMR Research Highlight
• May 23, 2024: US-China-Portugal-Japan collaboration on generalization of Landau levels is now on arXiv! arXiv:2405.14479
• April 22, 2024: In collaboration with Yoshiro Takahashi lab in Kyoto University, we succeeded in forming Bose-Einstein condensation at a topological edge state. This is the atom version of the topological laser, i.e. topological atom laser. You can read more in our arXiv paper! arXiv:2404.13769
• April 3, 2024: Collaboration with the Gadway group at the University of Illinois and Pennsylvania State University on Aharonov-Bohm caging with Rydberg atoms is now on arXiv! arXiv:2404.00737
• April 1, 2024: Tomoki has been promoted to full professor!
• March 31, 2024: Ryo left the group to join SOLIZE!
• March 28, 2024: We have proven a new type of bulk-edge correspondence, which we call bulk-entanglement-spectrum correspondence, for topological insulators with PT or PC symmetry. Please check our paper on arXiv! arXiv:2403.18372
• March 15, 2024: Tomoki has received Marubun Research Encouragement Award from Marubun Research Promotion Foundation!
• March 7, 2024: With Nathan Goldman from Bruxelles, we wrote a pedagogical note explaining the relation between the many-body Chern number and the Hall conductivity. You can read it on arXiv! arXiv:2403.03340
• March 1, 2024: Bruno's collaboration with experimentalists on quantum metrology is accepted for publication in National Science Review!
• February 9, 2024: The paper on a charged particle in a two-dimensional lattice under an imaginary magnetic field is published in Physical Review B! Phys. Rev. B 109, 085113 (2024)
• February 1, 2024: Tomoki selected as the recipient of the 6th Teruo Hiruma Photonics Award by Research Foundation for Opto-Science and Technology!
• January 17, 2024: Ryo's collaboration on non-Hermitian skin effect under nonsymmorphic symmetries is published in Physical Review B! Phys. Rev. B 109, 035131 (2024)
• January 9, 2024: The paper in which we studied properties of a discrete nonlinear Schrödinger equation coupled to density-dependent gauge field is now published in Physical Review Letters! Phys. Rev. Lett. 132, 023401 (2024)

You can also read the full list of news of the group