Dispersoin of the \pi resonance

Jiangping Hu; Shou-Cheng Zhang

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Dispersoin of the π resonance

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arxiv cond-mat/0103363 v1 pith:ZJMP37ZN submitted 2001-03-16 cond-mat.supr-con cond-mat.str-el

Dispersoin of the π resonance

Jiangping Hu , Shou-Cheng Zhang This is my paper

classification cond-mat.supr-con cond-mat.str-el

keywords resonancecommensurateawaydispersionsuperconductingargueciteconnected

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We study the dispersion of the $\pi$ resonance in the superconducting state within the projected SO(5) model\cite{project}. Away from the the commensurate momentum, the propagation of the $\pi$ resonance creates phase slips in the superconducting order parameter. This frustration effect leads to a strong dressing of the $\pi$ resonance and a downwards dispersion away from the commensurate wave vector. Based on these results, we argue that the the commensurate resonance and incommensurate magnetic fluctuations in the cuprates are continuously connected.

Dispersoin of the π resonance

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