Hasty Briefsbeta

The QMA Singularity

7 hours ago
  • #Quantum Complexity
  • #AI in Research
  • #QMA
  • Study on limitations of black-box amplification in QMA.
  • Proof that doubly exponentially small completeness error is optimal for black-box procedures.
  • Use of complex approximation theory for quantum oracle separation.
  • QMA (Quantum Merlin Arthur) as the quantum version of NP.
  • Open problem: whether QMA equals QMA1 (perfect completeness).
  • 2008 result showing QMA ≠ QMA1 relative to a quantum oracle.
  • 2025 breakthrough: black-box amplification to doubly exponentially small error.
  • Lower bound matches the 2025 protocol, showing optimality.
  • First paper using AI (GPT5-Thinking) for a key technical step.
  • AI suggested a rational function to analyze eigenvalues, proving crucial for the result.