Stripe order in superfluid 3He confined in narrow cylinders

Abstract

We theoretically investigate pairing states of the spin-triplet p-wave superfluid 3He confined in narrow cylinders. The surface-induced distortion and the multiple internal degrees of freedom of the order parameter lead to the occurrence of a stripe structure along the cylinder axis in the superfluid 3He-B phase. We show that in sufficiently small cylinders with an anisotropic surface scattering, the stripe order with broken translational symmetry may be stabilized as the lowest energy state. Periodic spin-current textures caused in this inhomogeneous superfluid phase are also discussed.

arXiv comment5 pages, 3 figures, accepted for publication in PRB (R)

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• Doping driven metal-insulator transitions and charge orderings in the extended Hubbard model
• Superfluid phases of ${}^3$He in nano-scale channels
• Strong-coupling and the Stripe phase of ${}^3$He
• Andreev Bound States in Superconducting Films and Confined Superfluid He-3
• Spontaneous helical order of a chiral p-wave superfluid confined in nano-scale channels
• Stripe order and diode effect in two-dimensional Rashba superconductors
• Radial Fulde-Ferrell-Larkin-Ovchinnikov state in a population-imbalanced Fermi gas
• Feasibility of a Fulde-Ferrell-Larkin-Ovchinnikov superfluid Fermi atomic gas
• Surface scattering effect and the stripe order in films of the superfluid ${}^3$He B phase