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CheMPS2
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CheMPS2
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#include <TensorS0.h>
Inheritance diagram for CheMPS2::TensorS0: Collaboration diagram for CheMPS2::TensorS0:Public Member Functions | |
| TensorS0 (const int boundary_index, const int Idiff, const bool moving_right, const SyBookkeeper *denBK) | |
| Constructor. More... | |
| virtual | ~TensorS0 () |
| Destructor. | |
| void | makenew (TensorT *denT) |
| void | makenew (TensorL *denL, TensorT *denT, double *workmem) |
| Public Member Functions inherited from CheMPS2::TensorOperator | |
| TensorOperator (const int boundary_index, const int two_j, const int n_elec, const int n_irrep, const bool moving_right, const bool prime_last, const bool jw_phase, const SyBookkeeper *bk_up, const SyBookkeeper *bk_down) | |
| Constructor. More... | |
| virtual | ~TensorOperator () |
| Destructor. | |
| int | gNKappa () const |
| Get the number of symmetry blocks. More... | |
| double * | gStorage () |
| Get the pointer to the storage. More... | |
| int | gKappa (const int N1, const int TwoS1, const int I1, const int N2, const int TwoS2, const int I2) const |
| Get the index corresponding to a certain tensor block. More... | |
| int | gKappa2index (const int kappa) const |
| Get the storage jump corresponding to a certain tensor block. More... | |
| double * | gStorage (const int N1, const int TwoS1, const int I1, const int N2, const int TwoS2, const int I2) |
| Get the pointer to the storage of a certain tensor block. More... | |
| int | gIndex () const |
| Get the boundary index. More... | |
| int | get_2j () const |
| Get twice the spin of the tensor operator. More... | |
| int | get_nelec () const |
| Get how many electrons there are more in the symmetry sector of the lower leg compared to the upper leg. More... | |
| int | get_irrep () const |
| Get the (real-valued abelian) point group irrep difference between the symmetry sectors of the lower and upper legs (see Irreps.h) More... | |
| void | update (TensorOperator *previous, TensorT *mps_tensor_up, TensorT *mps_tensor_down, double *workmem) |
| Clear and update. More... | |
| void | daxpy (double alpha, TensorOperator *to_add) |
| daxpy for TensorOperator More... | |
| void | daxpy_transpose_tensorCD (const double alpha, TensorOperator *to_add) |
| daxpy_transpose for C- and D-tensors (with special spin-dependent factors) More... | |
| void | clear () |
| Set all storage variables to 0.0. | |
| double | inproduct (TensorOperator *buddy, const char trans) const |
| Make the in-product of two TensorOperator. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from CheMPS2::TensorOperator | |
| void | update_moving_right (const int ikappa, TensorOperator *previous, TensorT *mps_tensor_up, TensorT *mps_tensor_down, double *workmem) |
| Update moving right. More... | |
| void | update_moving_left (const int ikappa, TensorOperator *previous, TensorT *mps_tensor_up, TensorT *mps_tensor_down, double *workmem) |
| Update moving left. More... | |
| Protected Attributes inherited from CheMPS2::TensorOperator | |
| const SyBookkeeper * | bk_up |
| The bookkeeper of the upper MPS. | |
| const SyBookkeeper * | bk_down |
| The bookkeeper of the lower MPS. | |
| int | two_j |
| Twice the spin of the tensor operator. | |
| int | n_elec |
| How many electrons there are more in the symmetry sector of the lower leg compared to the upper leg. | |
| int | n_irrep |
| The (real-valued abelian) point group irrep difference between the symmetry sectors of the lower and upper legs (see Irreps.h) | |
| bool | moving_right |
| Whether or not moving right. | |
| int * | sector_nelec_up |
| The up particle number sector. | |
| int * | sector_irrep_up |
| The up spin symmetry sector. | |
| int * | sector_spin_up |
| The up spin symmetry sector. | |
| int * | sector_spin_down |
| The down spin symmetry sector (pointer points to sectorTwoS1 if two_j == 0) | |
| bool | prime_last |
| Convention in which the tensor operator is stored (see class information) | |
| bool | jw_phase |
| Whether or not to include a Jordan-Wigner phase due to the fermion anti-commutation relations. | |
| Protected Attributes inherited from CheMPS2::Tensor | |
| int | index |
| Index of the Tensor object. For TensorT: a site index; for other tensors: a boundary index. | |
| double * | storage |
| The actual variables. Tensor block kappa begins at storage+kappa2index[kappa] and ends at storage+kappa2index[kappa+1]. | |
| int | nKappa |
| Number of Tensor blocks. | |
| int * | kappa2index |
| kappa2index[kappa] indicates the start of tensor block kappa in storage. kappa2index[nKappa] gives the size of storage. | |
TensorS0 class.
The TensorS0 class is a storage and manipulation class for the spin-0 component of two contracted creators or two contracted annihilators.
Definition at line 35 of file TensorS0.h.
| CheMPS2::TensorS0::TensorS0 | ( | const int | boundary_index, |
| const int | Idiff, | ||
| const bool | moving_right, | ||
| const SyBookkeeper * | denBK | ||
| ) |
Constructor.
| boundary_index | The boundary index |
| Idiff | Direct product of irreps of the two 2nd quantized operators; both sandwiched & to sandwich |
| moving_right | If true: sweep from left to right. If false: sweep from right to left |
| denBK | The symmetry sector partitioning |
Definition at line 26 of file TensorS0.cpp.
| void CheMPS2::TensorS0::makenew | ( | TensorT * | denT | ) |
Definition at line 39 of file TensorS0.cpp.
1.8.11 
