Non-analyticity of the ground state energy of the hydrogen atom in non-relativistic QED
Non-analyticity of the ground state energy of the hydrogen atom in non-relativistic QED
We derive the ground state energy up to the fourth order in the fine structure constant $\alpha$ for the translation invariant Pauli-Fierz Hamiltonian for a spinless electron coupled to the quantized radiation field. As a consequence, we obtain the non-analyticity of the ground state energy of the Pauli-Fierz operator for …