Spectral signatures of the Luttinger liquid to charge-density-wave transition

Details Spectral signatures of the Luttinger liquid to charge-density-wave transition Spectral signatures of the Luttinger liquid to charge-density-wave transition

2006-01-30

arxiv.org/abs/cond-mat/0601673v2

Phys. Rev. B 73, 245120 (2006)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures; final version, accepted for publication in Physical Review B

Scientific paper

10.1103/PhysRevB.73.245120

Electron- and phonon spectral functions of the one-dimensional, spinless-fermion Holstein model at half filling are calculated in the four distinct regimes of the phase diagram, corresponding to an attractive or repulsive Luttinger liquid at weak electron-phonon coupling, and a band- or polaronic insulator at strong coupling. The results obtained by means of kernel polynomial and systematic cluster approaches reveal substantially different physics in these regimes and further indicate that the size of the phonon frequency significantly affects the nature of the quantum Peierls phase transition.

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