Elementary particle theory was developed to explain the series of phenomena that could not be confirmed through experiment, due to the small size of the particles being investigated.
This course will give students an understanding of the rules that govern the behavior of elementary particles in a gravitational field.

This course discusses the big-bang theory and the resultant series of nuclear reactions that occurred in the early stages of our universes development, black-holes and much more.
A logical and analytical approach explains the origins of particles, the dynamics of cosmic plasma, applied theory and numerical simulation.

Cosmology is a field of study that seeks to understand how the universe came to be. At the very beginning of the cosmos, after the extremely hot, extremely dense singularity known as the Big Bang, was a period of rapid expansion known as cosmic inflation, which has slowed and cooled to form the universe we know today. Our research continues to pursue the origins of universe, as well as the mysteries behind phenomena such as dark matter and dark energy based on the information gathered in recent years through detailed observations of universal background radiation and large-scale structures in the distribution of celestial bodies in the Milky Way.

Our research primarily uses computer simulations to investigate the attributes of matter in high temperature states (such as liquid metals, liquid semiconductors, hydrogen storage materials, solid oxide fuel cell materials, etc.) by logically analyzing the movements of the atoms and electrons within them. In addition, this research seeks to develop new simulation techniques, such as visualizing the behavior of these substances using computer graphics and animation.

Structurally disordered systems such as superionic conductors, glasses, liquids, amorphous semiconductors, etc. are widely used as functional materials.
However, the microscopic origins of their properties are not sufficiently clarified yet.
The theoretical framework to understand in a unified way the properties of disordered systems is unknown.
In the present group, by the use of theoretical methods, researches are conducted on ion transport mechanism in structurally disordered systems as well as on their optical, thermodynamic and many other properties.

The ongoing trends of miniaturization and high functionality in computers and smartphones shows how mankind is now able to control incredibly small-scale physical phenomena. We are conducting fundamental research to create the electronics of the future by investigating reduced conductivity in nanostructures and nanosheets that have been created using fine processing technology to make them only a few electrons thick. In addition, we are seeking to elucidate various phenomena that occur on the nanoscale using scanning probe microscopy to observe the surfaces of substances on the electron level.

Since it emerged as a field in the 20th century, quantum mechanics has been an essential method for unravelling the mysteries of microscopic particles such as atoms and electrons. The field has been particularly useful for studying the properties of electrons in super conductors and the quantum properties of lattices, leading to applications of these findings in various technologies such as MRI (magnetic resonance imaging), SQUID (superconducting quantum interface devices), and linear motors. By studying the fundamental characteristics of superconductors, we hope to discover new phenomena in the field.

"Research using optics to find new potential in the materials of the future" is our motto as we use femtosecond ultrafast pulse lasers, nanosecond rapid pulse lasers, etc., in an extremely cold, -270℃ environment to uncover new phenomena exhibited by materials and search for new functional materials and types of superconductors. By using time windows one ten-trillionth of a second in length, we are working to capture ultrafast phenomena that occur in substances that are difficult to observe even when using electron microscopes, and to elucidate the true nature of these physical phenomena.

At a synchrotron radiation facility, energy can be used to output light of various wavelengths, including infrared, x-, and γ-rays, with highly focused directionality much like a laser. Using this light, we perform incredibly high-level research on various physical interactions of these rays on many substances.

Using this magical method of light control, we can perform fundamental research for measuring micro-scale arrangements of atoms (three-dimensional atomic images) and their movements, as well as the atomic arrangements and the characteristics of electronic states that are hidden behind the incredible functions of technologies like DVDs and thermoelectric materials.

Shining light from a variable frequency single wavelength dye laser through the atomic gas produced by evaporating a given substance lets researchers gain incredible insight into the properties of that substance, such as its energy level, excitation behavior, weakening patterns, reactions to magnetic fields, and so on. In addition, it is possible to apply this technique to produce a compact atomic clock, by using the quantum interference effect to precisely measure the difference between energy levels of atoms.