Quantum Troubleshooting Guide

Solve common issues with LambdaThetaMu's quantum grid computing systems and API integrations.

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πŸ”§ Common Issues

Error Q001: Node Disconnection

Occurs when a quantum node fails to maintain connection to the grid.

Solution: Check your internet connection. If stable, restart the affected node via the Developer Console.

Error Q002: Circuit Timeout

Execution fails due to excessive runtime exceeding the quantum core's allocated time.

Solution: Optimize circuits by:

Error Q003: API Unavailable

Service disruptions from overloaded or maintenance state in the quantum API gateway.

Solution:

  • Check the Status Page
  • Use quantum-cli health-check
  • Retry with exponential backoff

Error Q004: Entanglement Failure

Nodes unable to maintain entanglement required for quantum algorithm execution.

Solution: Verify:

  • Quantum decoherence rates in physical constraints
  • Environmental noise levels below 0.001eV
  • Using active error correction

🧾 Error Code Reference

Code Severity Description Action
Q001 CRITICAL Node Disconnection Fix Guide
Q002 WARNING Circuit Timeout Fix Guide
Q003 notice API Unavailability Fix Guide
Q004 WARNING Entanglement Failure Fix Guide

πŸ›  Quick Solutions

Node Connectivity Issues

Troubleshoot quantum node disconnections and network instability.

  1. Check quantum-cli network status
  2. Restart the node: /LambdaThetaMu/developers.html#restart
  3. Verify backend health via QControl interface
  4. Ensure TLS 1.3 is used for node communications
  • Check firewall rules
  • Verify DNS resolution to quantum-grid.lambda

Circuit Timeouts

Resolve performance issues in quantum algorithm execution times.

  1. Break circuits into smaller subcomponents
  2. Use qiskit.optimize()
  3. Upgrade to 113-127 qubit backend

API Gateway Unreachable

Diagnose when service disruptions prevent API access.

  1. Check status page for outages
  2. Try alternate regional endpoints
  3. Use service health probes
  • Schedule during maintenance windows
  • Verify TLS handshake success rate

Entanglement Instability

Fix errors with quantum entanglement states failing.

  1. Monitor entanglement-quality metrics
  2. Use surface code error correction
  3. Ensure sub-ambient cooling is maintained
  • Check magnetic interference levels
  • Verify optical isolation

βœ… Quick Validation Checklist

Before submitting a support request, make sure you've validated:

Disk space > 500GB available on control plane
All quantum nodes online via q-check
API Key active and not expired
Network routes configured for quantum subnet

❓ Still Stuck?

Join our support channels or submit a technical support request for urgent issues.

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