Staggered flux fluctuations and the quasiparticle scattering rate in the SU(2) gauge theory of the t-J model

Abstract

We study staggered flux fluctuations around the superconducting state of the SU(2) meanfield theory for the two-dimensional t-J-model and their effect on the electron spectral function. The quasiparticle peaks near the saddlepoints get strongly broadened and partially wiped out by these fluctuations while the quasiparticle peaks near the nodes of the d-wave gap are preserved over a wide parameter range. The strength of these effects is governed by an energy scale that decreases towards zero doping and that is related to the energy splitting between the SU(2)-related superconducting and staggered flux meanfield states.

4 pages, 3 figures, Figure 2 corrected

References in corpus (3)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Spin correlations in the algebraic spin liquid - implications for high Tc superconductors
• Effect of the magnetic resonance on the electronic spectra of high Tc superconductors

Cited by in corpus (5)

• Pseudogap phenomena in ultracold atomic Fermi gases
• Staggered flux vortices and the superconducting transition in the layered cuprates
• Change of quasiparticle dispersion in crossing T_c in the underdoped cuprates
• SU(2) approach to the pseudogap phase of high-temperature superconductors: electronic spectral functions
• Antiferromagnetism and singlet formation in underdoped high-Tc cuprates: Implications for superconducting pairing