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Decaying states in the rigged Hilbert space formulation of quantum mechanics

Journal Article · · J. Math. Phys. (N.Y.); (United States)
DOI:https://doi.org/10.1063/1.524553· OSTI ID:5659445
Within the rigged Hilbert space formulation of quantum mechanics idealized resonances (without background) are described by generalized eigenvectors of an essentially self-adjoint Hamiltonian with complex eigenvalue and a Breit--Wigner energy distribution. This establishes the link between the S matrix description of resonances by a pole and the usual description of states by vectors, overcomes theoretical problems connected with the deviation from exponential law and simplifies the calculation of the decay rate formula.
Research Organization:
Center for Particle Theory, Department of Physics, University of Texas, Austin, Texas 78712
OSTI ID:
5659445
Journal Information:
J. Math. Phys. (N.Y.); (United States), Journal Name: J. Math. Phys. (N.Y.); (United States) Vol. 21:5; ISSN JMAPA
Country of Publication:
United States
Language:
English