5 papers
Tensor Renormalization Group Calculations of Partition-Function Ratios
Satoshi Morita, Naoki Kawashima
The behavior of dimensionless quantities defined as ratios of partition functions is analyzed to investigate phase transitions and critical phenomena. At criticality, the universal…
Variational boundary based tensor network renormalization group
Feng-Feng Song, Naoki Kawashima
We propose a real-space renormalization group algorithm for accurately coarse-graining two-dimensional tensor networks. The central innovation of our method lies in utilizing varia…
Superfluid dome in the spatially modulated two-dimensional XY model
Feng-Feng Song, Aditya Chugh, Hanggai Nuomin +2
In strongly correlated electron systems, superconductivity and charge density waves often coexist in close proximity, suggesting a deeper relationship between these competing phase…
Multi-impurity method for the bond-weighted tensor renormalization group
Satoshi Morita, Naoki Kawashima
We propose a multi-impurity method for the bond-weighted tensor renormalization group (BWTRG) to compute the higher-order moment of physical quantities in a two-dimensional system.…
Emergent Intermediate Phase in the - XY model from Tensor Network Approaches
Feng-Feng Song, Hanggai Nuomin, Naoki Kawashima
We investigate the finite-temperature phase diagram of the classical - XY model on a square lattice using a tensor network approach designed for frustrated spin systems.…