Tensor renormalization group (TRG) method is a real space renormalization group
approach. It has been successfully applied to both classical and quantum systems. In this …

Tensor network (TN), a young mathematical tool of high vitality and great potential, has been
undergoing extremely rapid developments in the last two decades, gaining tremendous …

The entanglement entropy S is calculated on the system boundary of the square-lattice±J
Ising model by the time-evolving block decimation (TEBD) method. The random average〈 …

For a long time, quantum states of matter have been successfully characterized by the
Ginzburg-Landau formalism that was able to classify all different types of phase transitions …

A classical analogue of the entanglement entropy is calculated on the system boundary of
the two-dimensional Edwards-Anderson model, where the nearest-neighbor interaction is …

Tensor renormalization group method (TRG) is a real space renormalization group
approach. It has been successfully applied to both classical and quantum systems. In this …

古典スピン系の分配関数はテンソルネットワークによって表現できる. 格子間をテンソルでつなぎ,
縮約を取ることで, 求めたい物理量を得ることができる. そのままの形では, 縮約を取るのに膨大な …