Phonon Effects on Spin-Charge Separation in One Dimension

Abstract

Phonon effects on spin-charge separation in one dimension are investigated through the calculation of one-electron spectral functions in terms of the recently developed cluster perturbation theory together with an optimized phonon approach. It is found that the retardation effect due to the finiteness of phonon frequency suppresses the spin-charge separation and eventually makes it invisible in the spectral function. By comparing our results with experimental data of TTF-TCNQ, it is observed that the electron-phonon interaction must be taken into account when interpreting the ARPES data.

5 pages, 5 figures, minor differences with the published version in Physical Review Letters

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Cited by in corpus (21)

• Metallicity in the half-filled Holstein-Hubbard model
• Phase diagram of the one dimensional Hubbard-Holstein Model at 1/2 and 1/4 filling
• Zero-Temperature Phases of the 2D Hubbard-Holstein Model: A Non-Gaussian Exact Diagonalization Study
• Excitation spectra and spin gap of the half-filled Holstein-Hubbard model
• Spectral signatures of the Luttinger liquid to charge-density-wave transition
• Effect of Electron-Phonon Interaction Range for a Half-Filled Band in One Dimension
• Electron-phonon coupling and spin-charge separation in one-dimensional Mott insulators
• Density waves in strongly correlated quantum chains
• Phonon spectral function of the one-dimensional Holstein-Hubbard model
• Phonon spectral function of the Holstein polaron
• Interplay of charge, spin and lattice degrees of freedom on the spectral properties of the one-dimensional Hubbard-Holstein model
• Ground state and spectral properties of the doped one-dimensional optical Hubbard-Su-Schrieffer-Heeger model
• Stable bipolarons in open quantum systems
• Rich phase diagram of quantum phases in the anisotropic subohmic spin-boson model
• Enhancement of phonon effects in photoexcited states of one-dimensional Mott insulators
• Chebyshev pseudosite matrix product state approach for the spectral functions of electron-phonon coupling systems
• Ground-state properties of the two-site Hubbard-Holstein model: an exact solution
• Steady-state Peierls transition in nanotube quantum simulator
• Electron addition spectral functions of low-density polaron liquids
• Band-selective Holstein polaron in Luttinger liquid material A0.3MoO3 (A = K, Rb)
• Phase diagram of the two-dimensional Hubbard-Holstein model: enhancement of $s$-wave pairing between charge and magnetic orders