Renormalization group study of the 1d polaron problem

Abstract

We investigate the one-dimensional polaron problem and calculate the ground state energy and the effective mass. We use a real-time renormalization group method and compare our results with first and second order perturbation theory, with Feynman's variational principle and with the method of Lee, Low and Pines.

4 pages, 6 figures

References in corpus (1)

• Real-time renormalization group and charge fluctuations in quantum dots

Cited by in corpus (4)

• A perturbative nonequilibrium renormalization group method for dissipative quantum mechanics: Real-time RG in frequency space (RTRG-FS)
• Real-Time-RG Analysis of the Dynamics of the Spin-Boson Model
• New theoretical approaches to Bose polarons
• Nonperturbative analysis of coupled quantum dots in a phonon bath