Boundary effects on the local density of states of one-dimensional Mott insulators and charge density wave states

Journal article

We determine the local density of states (LDOS) for spin-gapped one-dimensional charge density wave (CDW) states and Mott insulators in the presence of a hard-wall boundary. We calculate the boundary contribution to the single-particle Green function in the low-energy limit using field theory techniques and analyze it in terms of its Fourier transform in both time and space. The boundary LDOS in the CDW case exhibits a singularity at momentum 2kF, which is indicative of the pinning of the CDW...

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Authors: Schuricht, D; Essler, F; Jaefari, A; Fradkin, E

• Publication status: Published
• Journal: Physical Review B
• Volume: 83
• Issue: 3
• Publication date: 2011-01-13
• DOI: 10.1103/PhysRevB.83.035111
• EISSN: 1550-235X
• ISSN: 1098-0121
• Language: English