Pair Phase Fluctuations and the Pseudogap

Abstract

The single-particle density of states and the tunneling conductance are studied for a two-dimensional BCS-like Hamiltonian with a d_{x^2-y^2}-gap and phase fluctuations. The latter are treated by a classical Monte Carlo simulation of an XY model. Comparison of our results with recent scanning tunneling spectra of Bi-based high-T_c cuprates supports the idea that the pseudogap behavior observed in these experiments can be understood as arising from phase fluctuations of a d_{x^2-y^2} pairing gap whose amplitude forms on an energy scale set by T_c^{MF} well above the actual superconducting transition.

arXiv comment5 pages, 6 eps-figures

References in corpus (14)

• Hidden Order in the Cuprates
• Evolution of the Fermi surface with carrier concentration in Bi_2Sr_2CaCu_2O_{8+δ}
• Predominantly Superconducting Origin of Large Energy Gaps in Underdoped Bi2Sr2CaCu2O8-d from Tunneling Spectroscopy
• Phase Fluctuations and Spectral Properties of Underdoped Cuprates
• The high-field phase diagram of the cuprates derived from the Nernst effect
• Nearly Antiferromagnetic Fermi Liquids: A Progress Report
• Classical Phase Fluctuations in High Temperature Superconductors
• Effective Actions and Phase Fluctuations in d-wave Superconductors
• The effect of phase fluctuations on the single-particle properties of the underdoped cuprates
• Pairing fluctuations and pseudogaps in the attractive Hubbard model
• Phase fluctuations, dissipation and superfluid stiffness in d-wave superconductors
• Depleted Kondo Lattices
• The dispersion of a single hole in an antiferromagnet
• Electronic Correlations Near a Peierls-CDW Transition

Cited by in corpus (29)

• Theory of Intertwined Orders in High Temperature Superconductors
• Scanning tunneling spectroscopy of high-temperature superconductors
• Theory of Superconductivity in Strongly Correlated Electron Systems
• Correlation between superfluid density and Tc of underdoped YBa2Cu3O6+x near the superconductor-insulator transition
• Charge Order in the Pseudogap Phase of Cuprate Superconductors
• Evolution of the Fermi surface in phase fluctuating d-wave superconductors
• Local origin of the pseudogap in the attractive Hubbard model
• Staggered flux vortices and the superconducting transition in the layered cuprates
• Phase-fluctuation induced reduction of the kinetic energy at the superconducting transition
• Pseudogap and Fermi-arc Evolution in the Phase-fluctuation Scenario
• Optical Sum Rule in Finite Bands
• On Migdal's theorem and the pseudogap
• Single-Particle Density of States of a Superconductor with a Spatially Varying Gap and Phase Fluctuations
• Robustness of the nodal d-wave spectrum to strongly fluctuating competing order
• Superconducting Fluctuation and Pseudogap in Disordered Short Coherence Length Superconductor
• Pseudogap and Superconducting Fluctuation in High-Tc Cuprates: Theory beyond 1-loop Approximation
• Monte Carlo study of thermal fluctuations and Fermi-arc formation in d-wave superconductors
• Change of quasiparticle dispersion in crossing T_c in the underdoped cuprates
• Effects of inhomogeneities and thermal fluctuations on the spectral function of a model d-wave superconductor
• Superconducting fluctuations and charge-4$e$ plaquette state at strong coupling
• Precursor effects of the superconducting state caused by d-wave phase-fluctuations above Tc
• Theory of Extrinsic and Intrinsic Tunnelling in Cuprate Superconductors
• On the origin of the Fermi arc phenomena in the underdoped cuprates: signature of KT-type superconducting transition
• Inhomogeneity, Fluctuations, and Gap Filling in Overdoped Cuprates
• Fractionalized Fermi liquids and the cuprate phase diagram
• Model for Vortex Pinning in a Two-Dimensional Inhomogeneous d-wave Superconductor
• Effects of thermal phase fluctuations in a 2D superconductor: an exact result for the spectral function
• Yamaji effect in models of underdoped cuprates
• The interplay of phase fluctuations and nodal quasiparticles: ubiquitous Fermi arcs in two-dimensional d-wave superconductors