Tracking spin and charge with spectroscopy in spin-polarised 1D systems

Abstract

We calculate the spectral function of a one-dimensional strongly interacting chain of fermions, where the response can be well understood in terms of spinon and holon excitations. Upon increasing the spin imbalance between the spin species, we observe the single-electron response of the fully polarised system to emanate from the holon peak while the spinon response vanishes. For experimental setups that probe one-dimensional properties, we propose this method as an additional generic tool to aid the identification of spectral structures, e.g. in ARPES measurements. We show that this applies even to trapped systems having cold atomic gas experiments in mind.

5 pages, 4 figures

References in corpus (13)

• Spin-charge separation and localization in one-dimension
• New Trends in Density Matrix Renormalization
• A universal high energy anomaly in angle resolved photoemission spectra of high temperature superconductors - possible evidence of spinon and holon branches
• New Model System for a One-Dimensional Electron Liquid: Self-Organized Atomic Gold Chains on Ge(001)
• Spin-charge separation in two-component Bose-gases
• Theory of quasi-one dimensional imbalanced Fermi gases
• Spin and charge dynamics of the one-dimensional extended Hubbard model
• Cold Attractive Spin Polarized Fermi Lattice Gases and the Doped Positive U Hubbard Model
• Spectral Densities from Dynamic Density-Matrix Renormalization
• Density-matrix renormalization group methods for momentum- and frequency-resolved dynamical correlation functions
• Is spin-charge separation observable in a transport experiment?
• Local density of states of 1D Mott insulators and CDW states with a boundary
• The Mott metal-insulator transition in the 1D Hubbard model in an external magnetic field

Cited by in corpus (9)

• Spectral Functions with the Density Matrix Renormalization Group: Krylov-space Approach for Correction Vectors
• Boundary effects on the local density of states of one-dimensional Mott insulators and charge density wave states
• Color-charge separation in trapped SU(3) fermionic atoms
• Blind deconvolution of density-matrix renormalization-group spectra
• Width of the charge-transfer peak in the SU(N) impurity Anderson model and its relevance to non-equilibrium transport
• Double Time Window Targeting Technique: Real time DMRG dynamics in the PPP model
• Löwdin's symmetry dilemma within Green functions theory for the one-dimensional Hubbard model
• Local density of states of a quarter-filled one-dimensional Mott insulator with a boundary
• Observation of spin-charge separation and boundary bound states via the local density of states