Index

Getting started

• Introduction
• Installation using pip
• Core Features
• Usage
• Citation

variPEPS

• Variational iPEPS
• iPEPS Unit Cells
  • Theoretical Overview
  • Technical implementation

Examples

• Overview
• Heisenberg antiferromagnet on the square lattice
  • Loading of relevant Python modules
  • variPEPS config settings
  • Model parameters
  • Constructing the Hamiltonian
  • Initial unit cell construction
  • Run the optimization
  • Evaluate the results
• Heisenberg antiferromagnet on the triangular lattice
  • Loading of relevant Python modules
  • variPEPS config settings
  • Model parameters
  • Constructing the Hamiltonian
  • Initial unit cell construction
  • Run the optimization
  • Evaluate the results

API documentation

• Public API Reference
  • Config of variPEPS module (varipeps.config)
  • Contractions definitions and helper methods (varipeps.contractions)
  • CTMRG method (varipeps.ctmrg)
  • Calculation of expectation values (varipeps.expectation)
  • Mapping of other structures to PEPS unitcells (varipeps.mapping)
  • Variational optimizer for the PEPS network (varipeps.optimization)
  • Implementation of PEPS structure (varipeps.peps)
  • Typing helper (varipeps.typing)
  • Utility functions (varipeps.utils)

Appendix

• License