reduced_density_matrix
Overloads
| Name | Description |
|---|---|
reduced_density_matrix(const RealMatrix psi, integer sites) -> RealMatrix | Calculates the reduced density matrix for a subsystem using a linear cut. Returns the reduced density matrix for the sites to the left of the linear cut. |
reduced_density_matrix(const RealMatrix psi, List<integer> sites) -> RealMatrix | Calculates the reduced density matrix for a subsystem using arbitrary subsystem cuts. |
reduced_density_matrix(const ComplexMatrix psi, integer sites) -> ComplexMatrix | Calculates the reduced density matrix for a subsystem using a linear cut. Returns the reduced density matrix for the sites to the left of the linear cut. |
reduced_density_matrix(const ComplexMatrix psi, List<integer> sites) -> ComplexMatrix | Calculates the reduced density matrix for a subsystem using arbitrary subsystem cuts. |
reduced_density_matrix(const RealMatrix psi, integer sites) -> RealMatrix
Calculates the reduced density matrix for a subsystem using a linear cut. Returns the reduced density matrix for the sites to the left of the linear cut.
Parameters
- psi: Real state vector.
- sites: Number of sites to include in the subsystem. The rest of the sites to the right of the cut are traced out.
reduced_density_matrix(const RealMatrix psi, List<integer> sites) -> RealMatrix
Calculates the reduced density matrix for a subsystem using arbitrary subsystem cuts.
Parameters
- psi: Real state vector.
- sites: List of site indices for subsystem. The excluded sites are traced out.
reduced_density_matrix(const ComplexMatrix psi, integer sites) -> ComplexMatrix
Calculates the reduced density matrix for a subsystem using a linear cut. Returns the reduced density matrix for the sites to the left of the linear cut.
Parameters
- psi: Complex state vector.
- sites: Number of sites to include in the subsystem. The rest of the sites to the right of the cut are traced out.
reduced_density_matrix(const ComplexMatrix psi, List<integer> sites) -> ComplexMatrix
Calculates the reduced density matrix for a subsystem using arbitrary subsystem cuts.
Parameters
- psi: Complex state vector.
- sites: List of site indices for subsystem. The excluded sites are traced out.