Physics – Condensed Matter – Superconductivity
Scientific paper
2006-06-30
Phys. Rev. Lett. 98, 027004 (2007)
Physics
Condensed Matter
Superconductivity
4 pages, 4 figures, version 3, Added new figures, detailed discussion of results
Scientific paper
The question of determining the underlying Fermi surface (FS) that is gapped by superconductivity (SC) is of central importance in strongly correlated systems, particularly in view of angle-resolved photoemission experiments. Here we explore various definitions of the FS in the superconducting state using the zero-energy Green's function, the excitation spectrum and the momentum distribution. We examine (a) d-wave SC in high Tc cuprates, and (b) the s-wave superfluid in the BCS-BEC crossover. In each case we show that the various definitions agree, to a large extent, but all of them violate the Luttinger count and do not enclose the total electron density. We discuss the important role of chemical potential renormalization and incoherent spectral weight in this violation.
Randeria Mohit
Sensarma Rajdeep
Trivedi Nandini
No associations
LandOfFree
Can one determine the underlying Fermi surface in the superconducting state of strongly correlated superconductors? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Can one determine the underlying Fermi surface in the superconducting state of strongly correlated superconductors?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Can one determine the underlying Fermi surface in the superconducting state of strongly correlated superconductors? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-391453