Quantum Ginzburg-Landau theory of doped Mott insulators

Details Quantum Ginzburg-Landau theory of doped Mott insulators Quantum Ginzburg-Landau theory of doped Mott insulators

2003-06-19

arxiv.org/abs/cond-mat/0306489v2

Chin. Phys. Lett. 20, 1582 (2003)

Physics

Condensed Matter

Superconductivity

4 pages, no figures, sequential to cond-mat/0306395

Scientific paper

10.1088/0256-307X/20/9/350

We improve a previous theory of doped Mott insulators with duality between pairing and magnetism by a further duality transform. As the result we obtained a quantum Ginzburg-Landau theory describing the Cooper pair condensate and the dual of spin condensate. We address the superconductivity by doping a Mott insulator, which we call Mott superconductivity. Some fingerprints of such novelty in cuprates are the scaling between neutron resonance energy and superfluid density, and the induced {\it quantized} spin moment by vortices or Zn impurity (together with circulating charge supper-current to be checked by experiments).

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