I was in Shanghai as a faculty for some years before coming to Okinawa. This not-too-short period, with the entire pandemic time included, made me totally convinced that both human life and society are complex enough and hugely vary from one country to another, and so individual mindsets and attitudes towards them need to be very well-organized and well-maintained. Being in Okinawa, OIST in particular, I am thankfully feeling that I can focus on what I have realized I do care most - my family and (certain sub-disciplines of) science - meanwhile optimistically hoping that my contribution will be beneficial in some way or other to someone else.
Members
Tokuro Shimokawa
Staff Scientist
After I got my PhD at the University of Hyogo, I worked as a postdoc at the Kobe (2012-2013) and Osaka (2013-2017) Universities, Japan. I've been interested in the novel magnetic states observed in frustrated spin systems, especially now, I'm studying on spin liquid and multiple-q states by means of some numerical techniques. I'm really happy to be able to study physics with many wonderful, respectable researchers. In my spare time, not only physics, I will enjoy playing tennis, diving and drinking with my friends, coworkers and family in this beautiful island.
Jiahui Bao
PhD Student
I got my Master's degree at Sun Yat-sen University in China, where I worked on several projects of theoretical physics including gravitational waves and holography. Currently I am attracted by ideas like fracton, quantum spin liquid in condensed matter theory, so I am glad to join TQM unit as a rotation student. Apart from physics, I also enjoy rock music, video games and searching for delicious food in this island.
Marina Razzhivina
PhD Student
I did my second rotation in this lab and enjoyed the friendly scientific atmosphere, which led me to join the group. During my rotation, I worked on applying the SCGA method to the Heisenberg model on the Kagome lattice, which was a great learning experience.
I'm interested in the properties of materials, particularly frustrated magnetic systems and exotic phases such as quantum spin liquids. I enjoy tackling analytical problems inspired by experimental data. Also, I'm interested in learning classical and semi-classical Monte Carlo methods.
Outside of research, I love creating science visualizations - whether it's animations in Python or Blender. My favorite YouTube channel is 3Blue1Brown.
Snigdh Sabharwal
PhD Student
I hail from Delhi, India where I started my venture into Physics. Thereafter, I got quite interested in understanding the Quantum world and went on to wrap my head around this area in my master's at Leiden University. I am still trying to do so! Another portion of my masters (which I later continued as a research assistant) was related to connections between topologically non-trivial solutions of electromagnetism, and general relativity. A better pitch would be that there exist knotted electromagnetic fields as solutions of Maxwell's equations and there are knots of spacetime (yes!), and the fun part is that they are related. At present, I am attracted by notions of geometry and topology within condensed matter physics and information theory. Now I am working in my third rotation to learn more about quantum spin liquids and quantum information geometry. Occasionally, I dabble with music production and going for long walks.
Ananya Samanta
PhD Student
I received my master's degree in Physics from IISER Bhopal, India. Afterwards, I got a chance to do PhD in TQM unit at OIST. My primary interest lies on Quantum Mechanics, Condensed Matter Physics, Statistical Physics and Numerical Methods. To be specific, I am excited about understanding how frustration can give rise to novel and rich phenomena like spin liquids. So, it is a great opportunity to be a part of TQM unit and being able to learn physics of unconventional matters in "Frustrated Magnetism". Apart from pursuing physics, I love sports, dancing, cooking and spending time with family and close ones.
Yusaku Hattori
Research Intern
(From October 2025)
I am an undergraduate student at the University of Tokyo and currently a research intern in the TQM Unit. I am really fascinated by the rich world of quantum many-body physics and its interplay with quantum information theory. I am currently working on the random-bond XXZ model––a simple yet deep model––and the multipartite entanglement structure of its ground state. The atmosphere at OIST and life in Okinawa suit me very well––the beautiful surrounding ocean always refreshes me. I am eager to explore more of Okinawa's nature, food, and sake! I am truly grateful to everyone who has supported me and made this opportunity possible.
Shino Takagi
Research Unit Administrator
My responsibilities include offering administrative assistance to facilitate the progress of research within the group. Since becoming part of OIST, I have had the pleasure of collaborating with outstanding individuals from around the world. Outside of work, I enjoy traveling and experiencing different cultures, which often inspires my work and broadens my perspectives.
