xi-zhao

184 mods across 1 repository, 77 stars between them.

xi-zhao/OpenQuantum

Skill Claude Code

A routing guide for eigenvalue and eigenvector problems. Eigenvalues describe special scaling factors of a matrix, while eigenvectors are the directions that keep that matrix action aligned.

not rated 75 changed 4d ago A 37 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for calculating derivatives of quantum circuits. A derivative measures how an output changes when a circuit parameter changes, which is needed when training or tuning a quantum model.

not rated 75 changed 4d ago A 36 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for simulating how a quantum system changes over time under a Hamiltonian, the mathematical description of its energy and motion. It routes problems to open-source circuit and matrix-decomposition methods.

not rated 75 changed 4d ago A 43 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for quantum methods that estimate solutions to linear equations, such as A x = b. It routes the task to open-source implementations using Qiskit or PennyLane and includes classical checks in some cases.

not rated 75 changed 4d ago A 38 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for choosing open-source quantum algorithms for common building blocks such as Grover search, amplitude estimation, and quantum Fourier transforms. Quantum algorithms use circuits that run on quantum simulators or quantum hardware.

not rated 75 changed 4d ago A 35 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for quantum chemistry workflows, including a method that represents molecular interactions as a quantum Hamiltonian. PySCF supplies molecular data, while DMRG is a numerical method for finding low-energy states.

not rated 75 changed 4d ago A 43 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for quantum machine-learning examples, where parameterised quantum circuits are trained or used to model data. It routes tasks to open-source implementations for optimisation, classification, distribution fitting, and physical-system models.

not rated 75 changed 4d ago A 41 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for turning simple one- and two-dimensional heat or advection equations into quantum circuits. Advection describes transport, while a heat equation describes how temperature spreads over time.

not rated 75 changed 4d ago A 40 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for quantum search examples and their open-source implementations. It covers quantum walks on linked trees and a specific hidden-shift problem, where a hidden change must be recovered from oracle queries.

not rated 75 changed 4d ago A 33 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A guide for preparing quantum states, meaning setting qubits to represent chosen numbers or probability amplitudes before an algorithm runs. It routes state-preparation tasks to open-source PennyLane or Qiskit methods.

not rated 75 changed 4d ago A 37 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A directory for open-source workflows covering quantum algorithms and related classical reference methods. It routes a problem to a smaller method guide instead of requiring one large catalogue to be read first.

not rated 75 changed 4d ago A 31 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A guide for running quantum algorithms with PennyLane, an open-source Python library for building and simulating quantum circuits. It routes a problem to a more specific local algorithm guide and uses a locked software environment.

not rated 75 changed 4d ago A 40 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A guide for running quantum algorithms with Qiskit, an open-source Python toolkit for creating and simulating quantum circuits. It directs each problem to a specific local algorithm guide and uses a fixed environment.

not rated 75 changed 4d ago A 38 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude CodeCodex

An open-source guide for replacing UnitaryLab quantum circuits, algorithms, and simulators with Qiskit, PennyLane, quimb, or PySCF. It explains how to translate the original inputs and outputs instead of assuming a backend name can be changed.

not rated 75 changed 4d ago A 44 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude Code

A directory guide for selecting an open-source quantum simulator workflow. It matches a mathematical problem, input format, scale, and desired output to a more specific guide for Qiskit, PennyLane, or other supported tools.

not rated 75 changed 4d ago A 32 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A runnable Qiskit implementation of the Hadamard test, a circuit method for estimating information about a quantum operation or state from measurement results. It records the circuit inputs and the resulting probabilities or state vector.

not rated 75 changed 4d ago A 65 tokens copy · 84% MIT

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A runnable Qiskit implementation of the Hadamard transform, a quantum operation that changes how the amplitudes of basis states combine. It builds an explicit circuit and records the inputs and resulting probabilities or state vector.

not rated 75 changed 4d ago A 65 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A runnable implementation of quantum signal processing for simulating a Hamiltonian, where a Hamiltonian is a mathematical description of a physical system's energy or evolution. It uses polynomial transformations and controlled combinations of operations to approximate time evolution.

not rated 75 changed 4d ago A 61 tokens original MIT

quantum-heat-1d

67

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A runnable open-source implementation of the one-dimensional heat equation, which describes how temperature spreads along a line over time. It uses a quantum-circuit method that rewrites the heat problem into a form suitable for simulation.

not rated 75 changed 4d ago A 76 tokens original MIT

quantum-heat-2d

68

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A runnable open-source implementation of the two-dimensional heat equation, which describes how temperature spreads across a square surface over time. It uses a quantum-circuit method and checks spatial and auxiliary-grid errors separately.

not rated 75 changed 4d ago A 70 tokens original MIT

quantum-hhl

69

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A runnable implementation of the HHL quantum algorithm, a method for estimating solutions to certain linear equations such as A x = b. It uses phase estimation, controlled rotations, and a measurement step that selects successful outcomes.

not rated 75 changed 4d ago A 62 tokens original MIT

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A quantum-circuit implementation of the hidden-shift problem for even-sized quadratic bent functions. The problem hides a bit string that shifts one function relative to another, and the circuit is designed to recover that shift.

not rated 75 changed 4d ago A 47 tokens original MIT

quantum-ising

71

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A quantum-computing skill for simulating an open-boundary two-dimensional Ising grid with quimb's matrix-product-state method. The Ising model represents interacting binary-like spins, and the method evolves them in time without building the full state vector.

not rated 75 changed 4d ago A 61 tokens original MIT

quantum-lcu

72

xi-zhao/OpenQuantum

Skill Claude CodeCodex

A quantum-computing skill for explaining, running, and modifying the linear-combination-of-unitaries method with Qiskit. This method combines several unitary quantum operations using given coefficients and an initial state.

not rated 75 changed 4d ago A 61 tokens original MIT

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