Mmastodon SciencePhysics first seen 1 d ago, last 1 h ago, peak #3
Do Quantum Fields' Energy Prove They Are Real?
Original: Quantum fields carry energy. Does that prove that they’re real? In quantum physics, we often argue over "what is real?"
Astrophysicist Ethan Siegel argues that quantum fields have a stronger claim to physical reality than other contested concepts in quantum physics, such as the wavefunction or eigenstates, because they carry measurable energy. The piece revisits the long-running debate over what counts as 'real' in quantum theory, a question that divides interpretations of the theory and remains unsettled among physicists and philosophers of science.
Why now: The philosophical question of what is real in quantum physics keeps resurfacing whenever a new argument, like energy as evidence for fields, is put forward.
Ethan SiegelBig Thinkquantum field theory
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Evidence
- Quantum fields carry energy. Does that prove that they’re real? In quantum physics, we often argue over "what is real?" Is the wavefunction? Are eigenstates? Quantum fields have a compelling argument for their reality: they carry energy. bigthink.com/starts-with-... #physics… · startswithabang.bsky.social@bsky.brid.gy · 3
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