Quantum Foundations Podcast Locality in Quantum Physics Explained with Dr Nicetu Tibau Vidal
Nov 24, 2024
Dr. Nicetu Tibau Vidal, a Research Fellow at the University of Hong Kong and former Oxford PhD student, discusses the intriguing interplay of locality and quantum physics. He explores the validity of local realism, challenging the idea that entangled particles' actions are non-local. The conversation unpacks Bell's theorem and its implications, alongside insightful thought experiments like sock measurements. Nicetu also delves into how our understanding of particles and their properties needs to evolve, with profound implications for the nature of reality.
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Locality Defined
- Locality is a principle stating things only affect their immediate surroundings.
- Direct interaction or mediating elements carry influence locally.
Newton's Non-Local Gravity
- Newton's gravity was non-local; the Sun disappearing would instantly stop Earth's orbit.
- Einstein aimed to fix this non-locality, emphasizing local interactions.
Locality in Relativity
- Einstein saw locality as fundamental for special and general relativity.
- Quantum entanglement challenges locality with seemingly instantaneous influences.