Quantum Interpretations

#Physics

Where is a quantum particle before it is measured?

• Realist Position
  • It is at the point of where it was measured, which is then revealed once we measure the particle
  • This was proven wrong by CHSH inequality experiments
• Orthodox Position (Copenhagen Interpretation)
  • It exists as its wave function, which is then collapsed once we measure the particle
  • This has been the accepted interpretation for a while
• Agnostic Position
  • It doesn't matter where it was because we can't possibly know
  • This was proven wrong by Bell's Theorem
• Pilot Wave
  • Postulates that the wave and particle are real and distinct
• Many Worlds Theory
  • A mainstream interpretation
• QBISM
• Consistent Histories
• Transactional Interpretation
• Stochastic Interpretation
• Quantum Darwinsim
• ...

Topics

• Ehrenfest Theorem
• Generalized Statistical Interpretation