38 lines
1.5 KiB
Plaintext
38 lines
1.5 KiB
Plaintext
---
|
||
title: random_hermitian
|
||
description: API reference for qiskit.aqua.utils.random_hermitian
|
||
in_page_toc_min_heading_level: 1
|
||
python_api_type: function
|
||
python_api_name: qiskit.aqua.utils.random_hermitian
|
||
---
|
||
|
||
<span id="qiskit-aqua-utils-random-hermitian" />
|
||
|
||
# qiskit.aqua.utils.random\_hermitian
|
||
|
||
<Function id="qiskit.aqua.utils.random_hermitian" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-aqua/tree/stable/0.8/qiskit/aqua/utils/random_matrix_generator.py" signature="random_hermitian(N, eigs=None, K=None, eigrange=None, sparsity=None, trunc=None)">
|
||
Generate random hermitian (sparse) matrix with given properties. Sparsity is achieved by truncating Pauli matrices. Sparsity settings alternate the eigenvalues due to truncation.
|
||
|
||
**Parameters**
|
||
|
||
* **N** (*int*) – size of matrix
|
||
* **eigs** (*Union(list, tuple, np.ndarray)*) – list of N eigenvalues. Overrides K, eigrange
|
||
* **K** (*Union(float, list, tuple)*) – condition number. Either use only condition number K or list/tuple of (K, lmin) or (K, lmin, sgn). Where lmin is the smallest eigenvalue and sign +/- 1 specifies if eigenvalues can be negative.
|
||
* **eigrange** (*Union(list, tuple, nd.ndarray)*) – \[min, max] list for eigenvalue range. (default=\[0, 1])
|
||
* **trunc** (*int*) – limit for number of Pauli matrices.
|
||
* **sparsity** (*float*) – sparsity of matrix. Overrides trunc.
|
||
|
||
**Returns**
|
||
|
||
hermitian matrix
|
||
|
||
**Return type**
|
||
|
||
np.ndarray
|
||
|
||
**Raises**
|
||
|
||
**ValueError** – invalid matrix
|
||
</Function>
|
||
|