qutip
Simulate quantum physics with QuTiP
Also available from: davila7
Quantum systems require specialized simulation tools. QuTiP provides solvers for open quantum systems with master equations, Lindblad dynamics, and decoherence. Use this skill to model quantum optics, cavity QED, and dissipative quantum processes.
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Using "qutip". Create a thermal state in QuTiP with average photon number 2
Expected outcome:
- Created thermal density matrix for N=10 Hilbert space
- Average photon number n_avg=2.0
- Von Neumann entropy calculated: S = 0.92
- Visualized Fock distribution showing thermal photon statistics
Using "qutip". Simulate quantum state evolution under Lindblad master equation
Expected outcome:
- Hamiltonian: sigmaz() with omega = 1.0
- Collapse operators: sqrt(0.1) * destroy(N)
- Time evolution: 0 to 10 with 200 time points
- Final expectation value <n> = 1.47 (decayed from initial 3.0)
Security Audit
SafeDocumentation-only skill containing markdown files with QuTiP code examples. All 405 static findings are FALSE POSITIVES from the analyzer misinterpreting markdown syntax as security patterns. No executable code, network calls, file system access, or external commands exist.
Risk Factors
⚡ Contains scripts (1)
⚙️ External commands (2)
🌐 Network access (1)
Quality Score
What You Can Build
Open system quantum dynamics
Model decoherence and dissipation in quantum optics experiments using master equation solvers.
Educational quantum simulations
Visualize quantum states on Bloch spheres and explore entanglement dynamics.
Cavity QED modeling
Simulate atom-cavity interactions with Jaynes-Cummings model and photon statistics.
Try These Prompts
Show me how to create a Fock state and a coherent state in QuTiP, then calculate the Wigner function for the coherent state.
Simulate a damped harmonic oscillator in QuTiP using mesolve with a collapse operator for energy dissipation. Plot the photon number decay over time.
Create a two-qubit Bell state in QuTiP and track how entanglement decays under local dephasing. Calculate concurrence over time.
Implement the Jaynes-Cummings model in QuTiP with cavity decay and atomic spontaneous emission. Show vacuum Rabi oscillations and photon number dynamics.
Best Practices
- Start with small Hilbert space dimensions and increase until results converge
- Use sesolve for pure states when dissipation is not needed for faster simulations
- Store only expectation values using e_ops instead of all states to reduce memory
Avoid
- Do not use QuTiP for circuit-based quantum computing (use qiskit, cirq, or pennylane)
- Avoid excessive Hilbert space dimensions without checking convergence
- Do not ignore numerical warnings about stiffness; adjust tolerances or solver method