kaiwave/qsengine

Issues somebody may already be working on are listed last. List everything by date

• Statistical test of the full sampling distribution

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  enhancement

  Difficulty 2/5 1-3 hours Newbie friendliness 70/100

  kaiwave/qsengine#22 · Opened Nov 7, 2026

• `unitary()`: project nearly-unitary matrices onto the closest unitary

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  kaiwave/qsengine#21 · Opened Nov 7, 2026

• Measure the CPU/GPU crossover on each machine

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  kaiwave/qsengine#20 · Opened Nov 7, 2026

• Fold long circuit drawings

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  kaiwave/qsengine#19 · Opened Nov 7, 2026

• Hamiltonian expectation value in one call

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  kaiwave/qsengine#18 · Opened Nov 7, 2026

• Start from any state: `initialize(state)`

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 54/100

  kaiwave/qsengine#17 · Opened Nov 7, 2026

• More standard gates

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  kaiwave/qsengine#16 · Opened Nov 7, 2026

• Make seeded runs reproducible across releases and say how they depend on the backend

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  kaiwave/qsengine#15 · Opened Nov 7, 2026

• Run the Rust test suite in CI and cover the large-register code paths

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  kaiwave/qsengine#14 · Opened Nov 7, 2026

• GPU numerical accuracy: compensated sums, norm-aware results, optional f64

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  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  kaiwave/qsengine#13 · Opened Nov 7, 2026

• Simulate the gates before the first mid-circuit measurement only once

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 56/100

  kaiwave/qsengine#12 · Opened Nov 7, 2026

• OpenQASM import and export

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  kaiwave/qsengine#11 · Opened Nov 7, 2026

• Parameterised circuits and gradients (for VQE and QAOA)

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  kaiwave/qsengine#10 · Opened Nov 7, 2026

• Faster CPU backend for large registers (≥ 20 qubits)

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  Difficulty 5/5 Over a week Newbie friendliness 48/100

  kaiwave/qsengine#9 · Opened Nov 7, 2026

• Noise simulation: Pauli channels, amplitude damping and readout error

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  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  kaiwave/qsengine#8 · Opened Nov 7, 2026

• measure() and if_test() reject NumPy integers

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  bug good first issue

  Difficulty 2/5 1-3 hours Newbie friendliness 78/100

  kaiwave/qsengine#7 · Opened Nov 7, 2026