Phys. Rev. B 80, 115116 (2009) [5 pages]

Robust pairing mechanism from repulsive interactions

Abstract

References

Citing Articles (2)

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K. A. Al-Hassanieh¹, C. D. Batista¹, P. Sengupta¹, and A. E. Feiguin^2,3,4
¹Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
²Condensed Matter Theory Center, Department of Physics, The University of Maryland, College Park, Maryland 20742, USA
³Microsoft Project Q, The University of California, Santa Barbara, California 93106, USA
⁴Department of Physics and Astronomy, The University of Wyoming, Laramie, Wyoming 82071, USA

Received 17 August 2009; published 17 September 2009

We present a robust pairing mechanism that arises from repulsive electron-electron interactions. Our results demonstrate that the interplay between antiferromagnetism and delocalization leads to topological confinement of hole pairs in a simple two-band Hubbard Hamiltonian. By using density-matrix renormalization group (DMRG) we also demonstrate the presence of dominant superconducting correlations in one-dimensional systems over a wide range of realistic parameters.

URL:

http://link.aps.org/doi/10.1103/PhysRevB.80.115116

DOI:

10.1103/PhysRevB.80.115116

PACS:

74.20.Mn, 71.10.Fd

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Phys. Rev. B 80, 115116 (2009) [5 pages]

Robust pairing mechanism from repulsive interactions