Document feedback

Question document fragment

When a question document fragment contains a formula, it is displayed as a space.

Submission type

issue

It's a little complicated...

I'd like to ask someone.

PR

Just a small problem.

I can fix it online!

Please select the submission type

Problem type

Specifications and Common Mistakes

- Specifications and Common Mistakes:

- Misspellings or punctuation mistakes,incorrect formulas, abnormal display.

- Incorrect links, empty cells, or wrong formats.

- Chinese characters in English context.

- Minor inconsistencies between the UI and descriptions.

- Low writing fluency that does not affect understanding.

- Incorrect version numbers, including software package names and version numbers on the UI.

Usability

- Usability:

- Incorrect or missing key steps.

- Missing main function descriptions, keyword explanation, necessary prerequisites, or precautions.

- Ambiguous descriptions, unclear reference, or contradictory context.

- Unclear logic, such as missing classifications, items, and steps.

Correctness

- Correctness:

- Technical principles, function descriptions, supported platforms, parameter types, or exceptions inconsistent with that of software implementation.

- Incorrect schematic or architecture diagrams.

- Incorrect commands or command parameters.

- Incorrect code.

- Commands inconsistent with the functions.

- Wrong screenshots.

- Sample code running error, or running results inconsistent with the expectation.

Risk Warnings

- Risk Warnings:

- Lack of risk warnings for operations that may damage the system or important data.

Content Compliance

- Content Compliance:

- Contents that may violate applicable laws and regulations or geo-cultural context-sensitive words and expressions.

- Copyright infringement.

Please select the type of question

Problem description

Describe the bug so that we can quickly locate the problem.

Submit

Document feedback

mindquantum.core.gates.FSim

class mindquantum.core.gates.FSim(theta: ParameterResolver, phi: ParameterResolver)

FSim gate represent fermionic simulation gate.

The matrix is:

$$\begin{array}{r}\mathrm{F}\mathrm{S}\mathrm{i}\mathrm{m}(\theta ,\varphi )=\left(\begin{array}{cccc}1& 0& 0& 0\\ 0& \cos (\theta )& -i\sin (\theta )& 0\\ 0& -i\sin (\theta )& \cos (\theta )& 0\\ 0& 0& 0& e^{-i\varphi }\end{array}\right)\end{array}$$

Parameters

• theta (Union[numbers.Number, dict, ParameterResolver]) – First parameter for FSim gate.

• phi (Union[numbers.Number, dict, ParameterResolver]) – Second parameter for FSim gate.

Examples

>>> from mindquantum.core.gates import FSim
>>> fsim = FSim('a', 'b').on([0, 1])
>>> fsim
FSim(θ=a, φ=b|0 1)

get_cpp_obj()

Construct cpp obj.

hermitian()

Get the hermitian gate of FSim.

Examples

>>> from mindquantum.core.gates import FSim
>>> fsim = FSim('a', 'b').on([0, 1])
>>> fsim.hermitian()
FSim(θ=-a, φ=-b|0 1)

matrix(pr: ParameterResolver = None, full=False)

Get the matrix of FSim.

Parameters

• pr (Union[ParameterResolver, dict]) – The parameter of fSim gate. Default: None.

• full (bool) – Whether to get the full matrix of this gate (the gate should be acted on some qubits). Default: False.

property phi: mindquantum.core.parameterresolver.parameterresolver.ParameterResolver

Get phi parameter of FSim gate.

Returns

ParameterResolver, the phi.

property theta: mindquantum.core.parameterresolver.parameterresolver.ParameterResolver

Get theta parameter of FSim gate.

Returns

ParameterResolver, the theta.