noise

Free Tutorials

• • intermediate
  • 22 min read

  PennyLane Error Mitigation: ZNE and PEC for NISQ Circuits

  Cut noise on NISQ devices with PennyLane: implement zero-noise extrapolation and probabilistic error cancellation, with a working example that beats the unmitigated baseline.

  →
• • intermediate
  • 13 min read

  Noise Modeling in Cirq

  Model realistic quantum hardware noise in Cirq: depolarizing channels, amplitude damping, bit-flip channels, and using DensityMatrixSimulator for noisy circuit simulation.

  →
• • intermediate
  • 14 min read

  Error Mitigation with Mitiq: Zero-Noise Extrapolation

  Use Mitiq's zero-noise extrapolation to reduce the impact of hardware noise on expectation values without full quantum error correction.

  →
• • intermediate
  • 25 min read

  Density Matrices and Mixed States in Qiskit

  Understand density matrices, mixed states, and the partial trace. Essential for reasoning about noise, decoherence, and real hardware, with working Qiskit examples.

  →
• • advanced
  • 14 min read

  Simulating Superconducting Qubit Physics in Cirq

  Use Cirq's tools for simulating Google-style superconducting circuits: fSim gates, GridQubits, device topology, and the cross-entropy benchmarking protocol.

  →
• • intermediate
  • 22 min read

  Error Mitigation on Amazon Braket

  Apply zero-noise extrapolation and measurement error mitigation techniques on Amazon Braket using local and density matrix simulators.

  →
• • advanced
  • 40 min

  Quantum Process Tomography with Qiskit

  Characterize quantum gates and channels using process tomography in Qiskit. Understand how to reconstruct the process matrix and interpret fidelity results.

  →
• • intermediate
  • 25 min read

  Quantum Decoherence Explained: Why Qubits Lose Their Quantum Nature

  What decoherence is physically, how T1 and T2 times characterise it, and why it is the central engineering problem of quantum computing. Includes Qiskit simulation of decoherence effects.

  →