2004/05/31 by P. W. Anderson, Philip W. Anderson, N. P. Ong · 3 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Asymmetry #Coherence (philosophical gambling strategy) #Coherence length #Condensed matter physics #Cuprate #Ground state #Molecule #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Superconductivity #Valence (chemistry) #Valence bond theory #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1016/j.jpcs.2005.10.132
published as J. Phys. Chem. Solids 67, 1-5 (2006). · 5 pages, 3 figures, revised 6/1/04
arxiv created 2004/06/01 · openalex publication_date 2005/11/24 · arxiv updated 2015/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We explain quantitatively, within the Gutzwiller-Resonating Valence Bond theory, the puzzling observation of tunneling conductivity between a metallic point and a cuprate high-Tc superconductor which is markedly asymmetric between positive and negative voltage biases. The asymmetric part does not have a "coherence peak" but does show structure due to the gap. The fit to data is satisfactory within the over-simplifications of the theory; in particular, it explains the marked "peak-dip-hump" structure observed on the hole side and a number of other qualitative observations. This asymmetry is strong evidence for the projective nature of the ground state and hence for "t-J" physics.