量子情報物理学/Quantum Information Physics
量子情報物理学

Quantum information physics
Since the 21st century, the development of quantum information and quantum computing has dramatically impacted the foundations of theoretical physics. In our Quantum Information Physics Laboratory, we challenge ourselves to open up new frontiers in physics by incorporating the ideas of quantum information and quantum computing. In particular, we aim to quantitatively elucidate the various interesting phenomena and dynamics exhibited by quantum many-body systems in condensed matter physics, such as quantum spin systems, strongly correlated electron systems, and cold atomic gas systems, through the construction of a theoretical method for representing quantum many-body entanglement by decomposing and recombining it, known as "tensor network." In addition, tensor networks are connected not only to quantum computing but also to quantum gravity through gauge-gravity correspondence. We develop international and interdisciplinary research associated with tensor-network physics.