Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revision | |
| material:qmodel [2025/08/01 14:50] – [Methods] markus | material:qmodel [2025/08/02 14:25] (current) – [Methods] markus |
|---|
| |
| ''tensor_basis'' is an optional argument to fix a 2-particle basis for the returned vector. If it is not given, a new basis is constructed as a tensor product of the vectors' bases. It might be necessary to specify ''tensor_basis'' in many cases, since the new vector should be defined on a particular basis object. More importantly, the symmetry of the provided basis is also respected. If ''tensor_basis'' is symmetric, the tensor product is a symmetrized tensor product, $v\otimes w+w\otimes v$, if it is antisymmetric, the tensor product is a wedge product, $v\wedge w=v\otimes w-w\otimes v$. | ''tensor_basis'' is an optional argument to fix a 2-particle basis for the returned vector. If it is not given, a new basis is constructed as a tensor product of the vectors' bases. It might be necessary to specify ''tensor_basis'' in many cases, since the new vector should be defined on a particular basis object. More importantly, the symmetry of the provided basis is also respected. If ''tensor_basis'' is symmetric, the tensor product is a symmetrized tensor product, $v\otimes w+w\otimes v$, if it is antisymmetric, the tensor product is a wedge product, $v\wedge w=v\otimes w-w\otimes v$. |
| | </WRAP> |
| | |
| | ''**Vector.proj() -> Operator**'' |
| | <WRAP indent> |
| | Returns an operator that is the projector on the given vector. |
| | The vector is always normalized in the procedure. |
| </WRAP> | </WRAP> |
| ===== Operator class ===== | ===== Operator class ===== |
