Structure 
========= 

The tree structure of the code is shown as follow. The corresponding utilities would be explained soon.
``` bash 
gcmps
├── build                # Makefile 
│   ├── CMakeFiles
│   ├── mps
│   └── test
├── gtensor              # gtensor Library
│   ├── numeric
│   ├── parallel
│   ├── util
│   └── varray
├── gtensor_blas_lapack  # gtensor Library 
│   ├── blas
│   └── lapack
├── gtensor_operation    # gtensor Library 
│   ├── generic
│   └── ndtensor
├── hdf5                 # hdf5 
│   └── hdf5
├── mps                  # MPS/MPO Core 
│   ├── generic
│   ├── mpsbase
│   └── split
├── mpslearn            
├── qtensor              # qtensor Library 
│   ├── numeric
│   └── util
├── qtensor_operation    # qtensor Library 
│   └── ndqtensor
├── test                 # Realization interface
└── testmpslearn
    └── data

30 directories
```

Realization interface 
---------------------
The realization of your program is done here where you write up your implementation of your Hamiltonian or dissipator, and proceed for DMRG, tMPS, or TEBD. 


MPS/MPS Core
------------
Implementation of 

* MPS and MPO class

* Time evolution scheme 
    * tMPS
    * TEBD
* DMRG scheme


gTensor dense tensor library 
------------------------------
supports dense tensor operations 

* tensor arithmetic

* contract 

* directSum

* fusion 

* svdCompress

* qrCompress 

* deparallise

* permute

qTensor dense tensor library (with quantum numbers)
---------------------------------------------------
supports dense tensor operations with quantum numbers. The quantum numbers are used for symmetry matrix product state.

* tensor arithmetic

* contract 

* directSum 

* fusion 

* tieIndex 

* svdCompress 

* qrCompress 

* deparallise

* permute