4 research outputs found
Superatom Representation of High-TC Superconductivity Revisited
A "super-atom" conceptual interface between chemistry and physics is proposed
in order to assist in the search for higher TC superconductors. High-TC
superconductivity HTSC is articulated as the entanglement of two disjoint
electronic manifolds in the vicinity of a common Fermi energy. The resulting
HTSC ground state couples near-degenerate protected local "super-atom" states
to virtual magnons in an antiferromagnetic AFM embedding. The composite Cooper
pairs emerge as the interaction particles for virtual magnons mediated
"self-coherent entanglement" of super-atom states. A H\"uckel type resonating
valence bond RVB formalism is employed in order to illustrate the real-space
Cooper pairs as well as their delocalization and Bose Einstein condensation BEC
on a ring of super-atoms. The chemical potential \mu(BEC) for Cooper pairs
joining the condensate is formulated in terms of the super-exchange
interaction, and consequently the TC in terms of the Ne\'el temperature. A
rationale for the robustness of the HTSC ground state is proposed: achieving
local maximum "electron correlation entropy" at the expense of non-local phase
rigidity.Comment: 25 pages, 2 figures. arXiv admin note: substantial text overlap with
arXiv:1007.411