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Ozeki Lab
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The lab investigates phase transitions through statistical physics simulations.
AboutAbout the lab
Approaching the essence of phase transitions through simulation.
The Ozeki Lab studies statistical physics, using simulation to investigate the collective behavior that emerges from large numbers of interacting elements.
The lab uses computers to analyze phase transitions that occur when atoms and molecules come together.
Its main research theme is the study and application of powerful methods that remain usable even when interactions are complex.
In the lab, members write programs in Linux terminals and run large-scale calculations, also using the supercomputer of the Institute for Solid State Physics at the University of Tokyo.
Key terms
- Statistical physics
- A field that derives and explains the collective behavior of large assemblies of elements such as atoms and molecules from microscopic first principles
- Phase transition
- A typical collective phenomenon exhibited by large numbers of atoms and molecules
- Mean-field approximation
- An approximation method long used to understand phase transitions. In systems with complex intermolecular interactions, it can yield inappropriate solutions
- Nonequilibrium relaxation method
- A general-purpose numerical method that can analyze phase transition phenomena. It is simpler and more versatile than equilibrium Monte Carlo simulation
ResearchResearch themes
Statistical physics derives and explains the collective behavior of large assemblies of elements such as atoms and molecules from microscopic first principles. The Ozeki Lab investigates phase transitions through numerical simulation.
*Illustrative imageMethods that work even with complex interactions
In systems with complex intermolecular interactions, such as frustrated systems and random systems, mean-field approximation often yields inappropriate solutions. The study and application of powerful methods that can be used even in such cases is the lab's main research theme.
*Illustrative imageNonequilibrium relaxation method for analyzing phase transitions
The nonequilibrium relaxation method is a general-purpose numerical method that can analyze phase transition phenomena. It is simpler and more versatile than conventional equilibrium Monte Carlo simulation, and a wide range of applications is expected.
MembersFaculty
The members of the Ozeki Lab consist of faculty, and doctoral, master's, and undergraduate students.As of 2025
- ProfessorYukiyasu Ozeki
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Liquid Crystal Phase Transition” KarlGaff / CC BY 4.0 (cropped)
- Methods that work even with complex interactions: “Ising-tartan” Linas at English Wikipedia / CC BY-SA 3.0 (cropped)
- Nonequilibrium relaxation method for analyzing phase transitions: “Simulation of a cosmological thermal phase transition, late times” DWeir / CC BY 4.0 (cropped)
- Related lab (Matsubayashi Lab): “MAXIMATOR-High-Pressure-Manometer-01a” CEphoto, Uwe Aranas / CC BY-SA 3.0 (cropped)
- Related lab (Ueno Lab): “Propagation of light through the core of an optical fiber. Macro visualization.” AZToshkov / CC BY-SA 3.0 (cropped)
- Related lab (Kato Lab): “Frequency Comb ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (Sakano Lab): “CSIRO ScienceImage 2578 Preparing a Protein Crystal sample for Xray” North Sullivan Photography, CSIRO / CC BY 3.0 (cropped)
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