Quantum application of L0 Zorn's lemma and well-ordering-theorem. Haag's theorem (1955) asserts that the interaction picture of quantum field theory does not exist: any unitary intertwiner V with V·π_free·V^(−1) = π_int implies π_int is…
Quantum application of L0 Zorn's lemma and well-ordering-theorem. Haag's theorem (1955) asserts that the interaction picture of quantum field theory does not exist: any unitary intertwiner V with V·π_free·V^(−1) = π_int implies π_int is…