profile picture Tomohiro Soejima (副島 智大)

email: tomohiro_soejima (at) g (dot) harvard (dot) edu

GitHub

About me

My name is Tomohiro Soejima, and I am a postdoctoral scholar at Harvard University. Prior to this, I was a physics graduate student at University of California, Berkeley, where I worked with Prof. Mike Zaletel on tensor networks methods and twisted bilayer graphene.

In my spare time, I can be found singing, watching soccer, reading about American history, or playing Shogi (将棋).

Research

My main area of research is condensed matter physics, and specifically tensor network related numerical methods and twisted bilayer graphene. I am also interested in understanding entanglement properties of topological ordered states. I have also worked on variational quantum algorithms for condensed matter systems as an intern at IBM quantum.

Selected publications

Full publication list can be found on my arXiv author profile. Here is a partial list of publications.

Quantum textures of the many-body wavefunctions in magic-angle graphene

Kevin P. Nuckolls, Ryan L. Lee, Myungchul Oh, Dillon Wong, Tomohiro Soejima, Jung Pyo Hong, Dumitru Călugăru, Jonah Herzog-Arbeitman, B. Andrei Bernevig, Kenji Watanabe, Takashi Taniguchi, Nicolas Regnault, Michael P. Zaletel, Ali Yazdani; Nature

Detecting Symmetry Breaking in Magic Angle Graphene Using Scanning Tunneling Microscopy

Jung Pyo Hong, Tomohiro Soejima, and Michael P. Zaletel; Physical Review Letters

Universal Tripartite Entanglement in One-Dimensional Many-Body Systems

Yijian Zou, Karthik Siva, Tomohiro Soejima, Roger S. K. Mong, and Michael P. Zaletel; Physical Review Letters

Efficient simulation of moiré materials using the density matrix renormalization group

Tomohiro Soejima, Daniel E. Parker, Nick Bultinck, Johannes Hauschild, and Michael P. Zaletel; Physical Review B

Isometric tensor network representation of string-net liquids

Tomohiro Soejima, Karthik Siva, Nick Bultinck, Shubhayu Chatterjee, Frank Pollmann, and Michael P. Zaletel; Physical Review B

First-Principles Design of a Half-Filled Flat Band of the Kagome Lattice in Two-Dimensional Metal-Organic Frameworks

Masahiko G. Yamada, Tomohiro Soejima, Naoto Tsuji, Daisuke Hirai, Mircea Dincă, Hideo Aoki; Physical Review B

Talks

Ground states of twisted bilayer graphene CMT seminar, Stanford University, Nov.2022
Identifying strongly-interacting phases of twisted bilayer graphene with cutting-edge numerics Watanabe group seminar, University of Tokyo, Feb. 2021
Efficient simulation of magic angle twisted bilayer graphene using the density matrix renormalization group Correlated Systems with Multicomponent Local Hilbert Spaces (CORRELATED20) - KITP, Nov. 2020

Isometric tensor network representation of string-net liquids.

Watanabe group, group seminar. University of Tokyo, July 2019.

Outreach and Service

I was a member and co-President of MIT Clubchem during my undergraduate years and performed "Chemistry magic shows" to local primary school students on a regular basis.

At Berkeley, I am part of BASIS. We go to local primary schools to hold one-hour hands-on classes on some scientific concept.

Inside Berkeley, I have mentored three undergraduate students via math and physics directed reading programs (DRP), as well as mentoring undergradute research project at the Zaletel group.

I am also serving on the soft condensed matter faculty search committee (Fall 2020) as a student liason.