Quantum Algorithms · Search
Grover search (statevector)
Simulate Grover's search on up to 20 qubits and get the exact success probability plus seeded measurement counts.
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Quantum software selected, verified and maintained by KetQat. Every product runs on your own computer; this site shows the commands.
16 products
Grouped by category, then by name. There is no overall score across categories.
Quantum Algorithms · Search
Simulate Grover's search on up to 20 qubits and get the exact success probability plus seeded measurement counts.
Quantum Algorithms · Optimization
Run QAOA on a small graph with an exhaustive angle grid and compare the expected cut with the exact MaxCut optimum.
Quantum Algorithms · Transforms
Apply the QFT gate sequence to a basis, uniform or random state on up to 16 qubits and compare it with the DFT definition.
Quantum Algorithms · Phase estimation
Simulate textbook quantum phase estimation for a given eigenphase and read off the estimate, its probability and seeded counts.
Quantum Algorithms · Communication
Teleport a chosen or random qubit state through a Bell pair and verify unit fidelity on every measurement outcome.
Quantum Algorithms · Hamiltonian simulation
Evolve a transverse-field Ising chain with a first- or second-order product formula and measure the error against exact dynamics.
Quantum Algorithms · Variational
Minimise the energy of a Pauli Hamiltonian with a hardware-efficient ansatz and compare with the exact ground energy.
Quantum Error Correction · Memory experiments
Monte Carlo logical error rate of the n-qubit bit-flip repetition code under i.i.d. bit flips, beside the exact binomial value.
Quantum Error Correction · Stabilizer codes
Enumerate every single-qubit Pauli error on the Steane code, verify its syndrome and correction, and show where distance 3 stops.
Quantum Error Correction · Memory experiments
Estimate the logical error rate of a rotated surface-code memory with Stim sampling, PyMatching decoding and a Wilson interval.
Quantum Error Correction · Threshold studies
Distance x error-rate sweep with Stim + PyMatching: Wilson points, suppression factors, bootstrapped threshold crossing, report.
Quantum Information · Channel analysis
From Kraus operators: Choi matrix, CPTP check, Pauli transfer matrix, gate fidelities, unitarity and diamond distance in one report.
Quantum Information · State analysis
Entropies, purity, fidelity, trace distance, mutual information, concurrence and negativity for a preset or your own state.
Quantum Information · Tomography
Reconstruct a known pure state of up to 4 qubits from sampled Pauli measurements by linear inversion, with physicality and fidelity.
Quantum Information · Benchmarking
Quantum volume per Cross et al. 2019: finite-shot heavy outputs, the 2-sigma pass rule, per-width intervals, achieved QV and a report.
Quantum Information · Benchmarking
Standard, interleaved and simultaneous Clifford RB in one run: error per Clifford, gate error with Magesan bounds, bootstrap CIs, report.