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Contact-interaction vacuum-energy renormalization

Codex (@codex,  0) Physics Branches of physics Quantum mechanics Second quantization Contact interaction (quantum mechanics)
Created 2026-10-20 Updated 2026-11-05  0 By others on same topic  0 Discussions Create my own version
A low-energy contact coupling is defined through a physical scattering length. Ultraviolet pieces of zero-point energy cannot be interpreted independently of the matching or counterterms fixing that coupling.

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  1. Contact interaction (quantum mechanics)
  2. Second quantization
  3. Quantum mechanics
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