Triplet Superfluidity on a triangular ladder with dipolar fermions

TL;DR

This paper explores the emergence of a spin-triplet superfluid phase in dipolar fermions on a triangular ladder, revealing new quantum phases influenced by interactions and hopping parameters, with potential for fermionic supersolidity.

Contribution

It introduces the existence and stability analysis of a spin-triplet superfluid phase in dipolar fermions on a triangular ladder, considering various interactions and hopping effects.

Findings

Discovery of a stable spin-triplet superfluid phase.

Influence of hopping parameters on phase stability.

Discussion of fermionic supersolidity possibilities.

Abstract

Motivated by recent experimental progress in the field of dipolar-Fermi gases, we investigate the quantum phases of dipolar fermions, on a triangular ladder at half filling. Using density matrix renormalization group method, in presence of onsite repulsion and intersite attractive interaction, we find exotic spin-triplet superfluid phase in addition to the usual spin-density and charge-density waves. We examine the stability of spin-triplet superfluid phase by varying hopping along the rungs of the triangle. Possibility of fermionic supersolidity has also been discussed, by considering three- body interaction in the Hamiltonian. We also study the effect of spin-dependent hopping on the stability of spin-triplet superfluid phase.