A new numerical algorithm for the double-orbital Hubbard model -- Hund-coupled pairing symmetry in the doped case

Details A new numerical algorithm for the double-orbital Hubbard model -- Hund-coupled pairing symmetry in the doped case A new numerical algorithm for the double-orbital Hubbard model -- Hund-coupled pairing symmetry in the doped case

2004-05-21

arxiv.org/abs/cond-mat/0405503v1

Phys. Rev. B 70, 172504 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.70.172504

In order to numerically study electron correlation effects in multi-orbital systems, we propose a new type of discrete transformation for the exchange (Hund's coupling) and pair-hopping interactions to be used in the dynamical mean field theory + quantum Monte Carlo method. The transformation, which is real and exact, turns out to suppress the sign problem in a wide parameter region including non-half-filled bands. This enables us to obtain the dominant pairing symmetry in the double-orbital Hubbard model, which shows that the spin-triplet, orbital-antisymmetric pairing that exploits Hund's coupling is stable in a wide region of the band filling.

Affiliated with

Also associated with

No associations

Rating

A new numerical algorithm for the double-orbital Hubbard model -- Hund-coupled pairing symmetry in the doped case 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 A new numerical algorithm for the double-orbital Hubbard model -- Hund-coupled pairing symmetry in the doped case, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new numerical algorithm for the double-orbital Hubbard model -- Hund-coupled pairing symmetry in the doped case will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-679223