FiniteMPS
A julia package for finite MPS/MPO-based computations of ground-state, finite-temperature and dynamical properties.
Science Score: 67.0%
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Low similarity (11.6%) to scientific vocabulary
Repository
A julia package for finite MPS/MPO-based computations of ground-state, finite-temperature and dynamical properties.
Basic Info
Statistics
- Stars: 54
- Watchers: 4
- Forks: 7
- Open Issues: 2
- Releases: 14
Metadata Files
README.md
FiniteMPS.jl
A julia package for finite MPS/MPO-based computations of ground-state, finite-temperature and dynamical properties.
Features
Versatility
- FiniteMPS.jl integrates multiple algorithms for studying a quantum many-body system: DMRG for ground state, tanTRG for finite-T and TDVP for dynamics, see Tutorial/Heisenberg.
- Both spin and fermion systems are supported, see Tutorial/Hubbard.
Convenience
- The MPS-level operations are separated with the lower tensor-level operations so that modifying codes with different symmetries, lattices and models is quite simple.
- We provide an interface to adding arbitrary multi-site interactions so that the Hamiltonian MPO can be generated in a simple and general way, see Tutorial/Hamiltonian.
- We also provide a similar interface for calculating arbitrary observables (e.g. multi-site correlations), see Tutorial/Observable.
Performance
- We use the state-of-the-art tensor library TensorKit.jl to perform the basic tensor operations, so that non-abelian symmetries can significantly accelerate computations.
- The hamiltonian MPO can be represented as a sparse one with abstract horizontal bonds so that the interaction terms can be distributed to different threads or workers, together with nested multi-threaded BLAS (with the help of MKL.jl).
- Controlled bond expansion (CBE) techniques are implemented (modified for compatibility with parallelism) to reduce the complexity, e.g. $O(D^3d^2)$ to $O(D^3d)$ for DMRG and TDVP.
Quick start
FiniteMPS.jl is a registered package. To install it, just press "]" in julia REPL and type
julia
pkg> add FiniteMPS
A short tutorial to use this package is provided in documentation, in where we give some demo scripts that solve ground-state, finite-T and dynamical properties of concrete models.
If you encounter any problem, please feel free to contact us (liqiaoyi@itp.ac.cn) or submit an issue.
Owner
- Name: Qiaoyi Li
- Login: Qiaoyi-Li
- Kind: user
- Location: Beijing
- Website: orcid.org/0000-0003-3508-9925
- Repositories: 1
- Profile: https://github.com/Qiaoyi-Li
Ph.D. student at ITP & UCAS, working on quantum many-body physics.
Citation (CITATION.cff)
cff-version: 1.2.0 message: "If you use this software, please cite it as below." authors: - family-names: "Li" given-names: "Qiaoyi" orcid: "https://orcid.org/0000-0003-3508-9925" title: "FiniteMPS.jl" url: "https://github.com/Qiaoyi-Li/FiniteMPS.jl"
GitHub Events
Total
- Create event: 7
- Commit comment event: 12
- Issues event: 2
- Release event: 4
- Watch event: 17
- Issue comment event: 6
- Push event: 65
- Pull request review event: 3
- Pull request event: 11
- Fork event: 4
Last Year
- Create event: 7
- Commit comment event: 12
- Issues event: 2
- Release event: 4
- Watch event: 17
- Issue comment event: 6
- Push event: 65
- Pull request review event: 3
- Pull request event: 11
- Fork event: 4
Packages
- Total packages: 1
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Total downloads:
- julia 30 total
- Total dependent packages: 0
- Total dependent repositories: 0
- Total versions: 12
juliahub.com: FiniteMPS
A julia package for finite MPS/MPO-based computations of ground-state, finite-temperature and dynamical properties.
- Documentation: https://docs.juliahub.com/General/FiniteMPS/stable/
- License: MIT
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Latest release: 1.7.1
published 7 months ago