2000/04/27 by Amit Ghosal, Ghosal, Amit, Mohit Randeria +3
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0004481
4 pages; 4 figures
arxiv created 2000/04/27 · openalex publication_date 2000/04/27 · arxiv updated 2009/11/30 · openalex created_date 2022/09/03 · openalex updated_date 2026/07/28
We study a short coherence length d-wave superconductor with finite density\nof unitary scatterers using the Bogoliubov-deGennes technique. We find that the\nlow-energy density of states is reduced, the superfluid stiffness is\nsignificantly larger and off-diagonal long range order is more robust than the\nself-consistent T-matrix prediction. These results are a consequence of the\ninhomogeneous pairing amplitude in the ground state and of the low-lying\nexcitations formed by hybridized impurity resonances. These features, with\ntheir nontrivial spatial structure, cannot be adequately described within the\nconventional T-matrix approach.\n