Affiliation:
1. University of Science and Technology of China
2. Ningbo University
3. Chinese Academy of Sciences
Abstract
In a series of papers, we have proposed a nonperturbative field-theoretic approach to deal with strong electron-phonon and strong Coulomb interactions. The key ingredient of such an approach is to determine the full fermion-boson vertex corrections by solving a number of self-consistent Ward-Takahashi identities. Palle argued that our Ward-Takahashi identities failed to include some important additional terms and thus are incorrect. We agree that our Ward-Takahashi identities have ignored some potentially important contributions and here give some remarks on the role played by the additional terms.
Published by the American Physical Society
2024
Publisher
American Physical Society (APS)