2005
DOI: 10.1103/physrevb.71.214511
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Model of phase fluctuations in a latticed-wave superconductor: Application to the Cooper-pair charge-density wave in underdoped cuprates

Abstract: We introduce and study an XY-type model of thermal and quantum phase fluctuations in a twodimensional correlated lattice d-wave superconductor based on the QED3 effective theory of high temperature superconductors. General features of and selected results obtained within this model were reported earlier in an abbreviated format (Z. Tešanović, cond-mat/0405235). The model is geared toward describing not only the long distance but also the intermediate lengthscale physics of underdoped cuprates. In particular, w… Show more

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Cited by 54 publications
(45 citation statements)
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References 45 publications
(86 reference statements)
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“…This implies that, as x falls below x c at low T and in zero field, superconductivity is destroyed by the spontaneous appearance of free (anti) vortices engendered by increased charge localization and strong phase fluctuation 3,4,6 . In zero field, superconductivity first transforms to a vortex-liquid state with strong phase disordering.…”
Section: Of the Orbital Term χ Orb (T )Hmentioning
confidence: 99%
See 1 more Smart Citation
“…This implies that, as x falls below x c at low T and in zero field, superconductivity is destroyed by the spontaneous appearance of free (anti) vortices engendered by increased charge localization and strong phase fluctuation 3,4,6 . In zero field, superconductivity first transforms to a vortex-liquid state with strong phase disordering.…”
Section: Of the Orbital Term χ Orb (T )Hmentioning
confidence: 99%
“…But the way in which superconductivity is destroyed as x is decreased at very low temperatures, T , is not clear [3][4][5][6][7] . Does the pair condensate vanish abruptly at a critical value, x c ?…”
mentioning
confidence: 99%
“…In this region, a variety of spin-density [25,43,45,46,49,[83][84][85], charge-density [25,[86][87][88], pair-density wave [88][89][90][91], and stripe orders [30,32,51,52,85,[92][93][94][95] have been posited in both the Hubbard model and the simpler t-J model, with different types of orders seen in different simulation methods. These inhomogeneous phases are proposed to be relevant in the pseudogap physics [89,90,[96][97][98][99][100].…”
mentioning
confidence: 99%
“…45 In addition, there have been theoretical studies of the SC quantum phase fluctuations using the QED 3 effective theory of the HTS in relation with the inhomogeneous pattern formation in cuprates from the STM experimental results. 46,47 While DMRG treatments 24 provide detailed information on the real space charge, spin, and pairing orders, the precise nature of the interplay, and whether the dif-ferent orders compete or cooperate, remains unclear. In addition, the enhancement of the superconducting transition temperature T c by local inhomogeneity has been demonstrated by Martin et al in Ref.…”
Section: 20mentioning
confidence: 99%