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Operator | syten::MPS::dot (Operator const &a, Operator const &b, Sector const &target) |
| Scalar product of two operators, i.e. the product of the operators projected on the supplied vacuum sector. More...
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Operator | syten::MPS::dot (Operator const &a, Operator const &b) |
| Scalar product of two operators. More...
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void | syten::MPS::equiscale (Operator &op) |
| Rescales all tensors of the MPO such that the 2-norms of no pair of tensors varies more than by a factor of two. More...
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Tensor< 4 > | syten::MPS::genMPOId (Basis const &upperBasis, Basis const &rightBasis) |
| Generates an identity MPO component. More...
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Tensor< 4 > | syten::MPS::mpo_cmp_prod (Tensor< 4 > const &lower, Tensor< 4 > const &upper, bool const fuse_lhs) |
| Builds a new rank-4 MPO component from two rank-4 MPO components lower and upper multiplied over the upper (for lower ) and lower (for upper ) physical indices. More...
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SRDef | syten::MPS::norm (Operator const &a) |
| Returns the square root of the overlap of the operator with itself, identical to the Frobenius norm. More...
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SRDef | syten::MPS::normSqd (Operator const &a) |
| Returns the overlap of the operator with itself, identical to the squared Frobenius norm. More...
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Operator | syten::MPS::operator* (Operator const &a, SDef const b) |
| Scale a MPO by a scalar, \( \hat r = b \hat a \). More...
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Operator | syten::MPS::operator* (SDef const b, Operator const &a) |
| Scale a MPO by a scalar, \( \hat r = b \hat a \). More...
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Operator | syten::MPS::operator* (Operator const &a, Operator const &b) |
| Product of two MPO, \( \hat r = \hat b \hat a \), i.e. b is applied after a if r is applied to a state. More...
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Operator | syten::MPS::operator+ (Operator const &a, Operator const &b) |
| Sum of two MPO, \( \hat r = \hat b + \hat a \). More...
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Operator | syten::MPS::operator- (Operator const &a, Operator const &b) |
| Difference of two MPO, \( \hat r = \hat a - \hat b \). More...
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std::ostream & | syten::MPS::operator<< (std::ostream &out, Operator const &op) |
| Prints a MPO. More...
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SDef | syten::MPS::overlap (Operator const &a, Operator const &b) |
| Returns the overlap of two operators \( \hat A \) and \( \hat B \), equivalent to \(\mathrm{tr}\left(\hat A^\dagger B\right) \). More...
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Implementation of a matrix product operator.