Simulation OverviewΒΆ

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Simulations in OSMPS are specified by Python files with .py suffix. To run a simulation simulation.py, call

osmps@manual:~$ python simulation.py

at the command line. The basic outline of a simulation file is

  1. Include the required Python libraries.

  2. Define the local Hilbert space, i.e., the microscopic constituents of the lattice model.

  3. Define the Hamiltonian (MPO.MPO).

  4. Define observables and other measures (Obs.Observables).

  5. Choose the algorithms which are to be used and choose their convergence criteria (Python Module convergence)

  6. Define the other simulation metadata.

  7. Run the simulations (tools.runMPS())

  8. Extract observables data and postprocess.

In the following we have a list of example simulation within OSMPS. We recommend to use one or both of following examples to verify that your installation of OSMPS has been completed correctly:

In the main section of the OSMPS manual you will find an explanation of all the optional parameters and an additional section with examples which contain:

  • Haldane Shastry

  • Infinite Heisenberg (spin 1)

  • Long-range Tunneling

  • ParallelHCDipolar

  • Spinless Fermions

If one of those examples are close to your problem, you might start from there.

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