288 citations · 1.6k across the 50 of their papers we have counts for
16 papers · 1 filter
Surface-induced vortex core restructuring in a spin-triplet superfluid
Riku Rantanen, Mikael Huppunen, Erkki Thuneberg +1
Observing the structure of quantized vortices can provide evidence for the pairing nature of a superfluid or superconductor and pinpoint its order parameter. Spin-triplet superflui…
Square-well model for superconducting pair-potential
Erkki Thuneberg
We study Andreev reflection in a one-dimensional square-well pair-potential. We discuss the history of the model. The current-phase relation is presented as a sum over Matsubara fr…
Comment on "Ballistic SNS sandwich as a Josephson junction"
Erkki Thuneberg
The old problem of supercurrent in a long ballistic SNS Josephson junction is interpreted using a simple picture of the fermion energy levels in the normal and superconducting regi…
Spin wave radiation from vortices in He-B
S. M. Laine, E. V. Thuneberg
We consider a vortex line in the B phase of superfluid He under uniformly precessing magnetization. The magnetization exerts torque on the vortex, causing its order parameter t…
Models for supercritical motion in a superfluid Fermi liquid
J. A. Kuorelahti, S. M. Laine, E. V. Thuneberg
We study the drag force on objects moving in a Fermi superfluid at velocities on the order of the Landau velocity . The expectation has been that is the critical velocit…
Calculation of Leggett-Takagi relaxation in vortices of superfluid 3He-B
S. M. Laine, E. V. Thuneberg
We calculate the relaxation of Brinkman-Smith mode via Leggett-Takagi relaxation in the presence of an isolated vortex in superfluid 3He-B. The calculation is based on an analytica…
Lifshitz transition in the double-core vortex in 3He-B
M. A. Silaev, E. V. Thuneberg, M. Fogelström
We study the spectrum of fermion states localized within the vortex core of a weak-coupling p-wave superfluid. The low energy spectrum consists of two anomalous branches that cross…
Hard domain walls in superfluid 3He-B
Matti Silveri, Tero Turunen, Erkki Thuneberg
We study theoretically planar interfaces between two domains of superfluid 3He-B. The structure of the B-B walls is determined on the scale of the superfluid condensation energy, a…
Charge transport through ultrasmall single and double Josephson junctions coupled to resonant modes of the electromagnetic environment
Yu. A. Pashkin, H. Im, J. Leppäkangas +5
We have investigated charge transport in ultrasmall superconducting single and double Josephson junctions coupled to resonant modes of the electromagnetic environment. We observe p…
Effect of decoherence on resonant Cooper-pair tunneling in a voltage-biased single-Cooper-pair transistor
J. Leppäkangas, E. Thuneberg
We analyze how decoherence appears in the I-V characteristics of a voltage-biased single-Cooper-pair transistor. Especially the effect on resonant single or several Cooper-pair tun…
Tunneling of Cooper pairs across voltage biased asymmetric single-Cooper-pair transistors
J. Leppäkangas, E. Thuneberg, R. Lindell +1
We analyze tunneling of Cooper pairs across voltage biased asymmetric single-Cooper-pair transistors. Also tunneling of Cooper pairs across two capacitively coupled Cooper-pair box…
Theory of Josephson Phenomena in Superfluid 3He
Erkki Thuneberg
Quite detailed theoretical description of superfluid 3He is possible on length scales that are much larger than the atomic scale. We discuss weak links between two bulk states of 3…
Dissipative Currents in Superfluid 3He Weak Links
J. K. Viljas, E. V. Thuneberg
We calculate the current-pressure relation for pinholes connecting two volumes of bulk superfluid 3He-B. The theory of multiple Andreev reflections, adapted from superconducting we…
Equilibrium simulations of 2D weak links in p-wave superfluids
J. K. Viljas, E. V. Thuneberg
A two-dimensional Ginzburg-Landau theory of weak links in a p-wave superfluid is presented. First we consider the symmetry properties of the energy functionals, and their relation…
Pinhole calculations of the Josephson effect in 3He-B
J. K. Viljas, E. V. Thuneberg
We study theoretically the dc Josephson effect between two volumes of superfluid 3He-B. We first discuss how the calculation of the current-phase relationships is divided into a me…
Hydrostatic theory of superfluid 3He-B
E. V. Thuneberg
The determination of the texture of the order parameter is important for understanding many experiments in superfluid 3He. In addition to reviewing the theory of textures in superf…