Recent News
- Our new member, Kazuki Sone, will tell us on edge states of non-linear systems
- Bulk-edge correspondence for energy dependent systems/nonlinear eigen value problems
- SKCM² Spring Symposium: Nara, Japan
- APS March meeting 2024
- Bulk-edge correspondence (Encyclopedia of condensed matter physics, 2nd Ed.)
- TTQM2023 Kashiwa
- The Physical Society of Japan, Annual meeting 9/16-9/19 (2023), Tohoku Univ.
- Nontrivial Topology of Nontopological Nonlinear Waves
- Shiro Sakai will tell us on hyperuniformity !
- Heat carrying corner states of breathing Kagome
- Z2× Z2 symmetry and Z4 quantization in bosonic ladders
- Hidenori Fukaya will be telling us on dyon & topological insulators
- Negative index photonic crystal induces non hermitian physics
- Diophantine equation of SU(Q) topological pump
- Funding 2023
- JPS Spring Meeting 2023
- APS March meeting 2023
- Graphene, silicene and martini
- Array of Martini glasses with topology
- Novel critical states in random U(1) MO models in 2D
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Detecting non-trivial topology without any boundary
As for topological phases, bulk is usually hidden in the sense that non trivial topological numbers of the bulk are hardly observed directly by standard experiments. Then observation of edge states re...
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BEC seminar 13:00-14:00 Dec. 25 (Fri.), 2020: Haruki Watanabe (Univ. of Tokyo)
Haruki Watanabe (Univ. of Tokyo) will be telling us on his recent works at 13:00-14:00 Dec. 25 (Fri.), 2020 (Zoom). "Multipole moments and fractional corner charges of insulating materials" Thank you.
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Flat Band Quantum Scar
Quantum scar is atypical and behaves exceptionally as for the ETH (eigenstate thermalization hypothesis) although the system itself is non-integrable. We have constructed various such quantum scars ba...
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Interaction induced itinerancy and bulk-edge correspondence
Bosonic particle pair of the Creutz ladder become itinerant due to particle-particle interaction although its one particle spectrum is completely flat implying localized in real space. Then modulatio...
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Non trivial topology without boudaries in quantum dynamics
Topologically non trivial bulk is mostly hidden in the sense that topological invariants of the bulk are hardly observed directly by experiments. Here we have demonstrated quantum dynamics of a locali...
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Focus lecture: Nagoya Univ.: Physics of bulk-edge correspondence:From quantum Hall effects to recent topics
Focus lecture: Nagoya Univ.: Physics of bulk-edge correspondence:From quantum Hall effects to recent topics (Hosted by Prof. Hiroshi Kohno ) Lecture "Physics of bulk-edge correspondence:From quantum H...
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BEC seminar 14:00-15:00 Dec.18 (2020): Kaoru Mizuta (Kyoto Univ.)
BEC seminar, 14:00-15:00 Dec.18 (2020) Kaoru Mizuta will be telling us on “Liouvillianity breaking in interacting Floquet-Lindblad systems under high-frequency drive”. Thank you.
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Japanese scientific newspaper on type-III Dirac cones…
The way to construct type-III Dirac cones by our MO method appears in Japanese scientific newspaper on Nov.13, 2020. Original information is here.
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Thouless pump and SPT’s phase boundary
Thouless' (adiabatic) pump in one-dimension is a typical topological phenomena characterized by the Chern number that correspondes to the quantized motion of the center of mass (COM). Although the COM...
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Editors’ choice and News & Comm. of JPSJ: Type III Dirac cones…
The Dirac cone is a typical singular energy dispersion in two dimensions that is a source of various non-trivial topological effects. When realized in real/synthetic materials, it is generically tilte...
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Square-root higher order topological insulator (SR-HOTI)
Motivated by a historical example, the Dirac Hamiltonian as a square-root of the Klein-Gordon Hamiltonian, its lattice analogue has been discussed recently. Zero energy states are shared by the parent...
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Job opening : 1 assistant professor (Th. of condensed matter phys.)(2019)
We are hiring one assistant professor. The position is now open. This is for research of topological phases working with Prof. Yasuhiro Hatsugai. Japanese skill for education is not necessary. Assista...
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Job opening : 2 assistant professors (2017)
Job opening of 2 Assistant Professor positions (Theory of topological phases) Division of Physics, University of Tsukuba [pdf] Position:2 Assistant Professors Assistant Professor A: Tenure-track Assis...
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