43 citations · 57 across the 4 of their papers we have counts for
14 papers
Giant Variations of Cooper-Pair Size in Nanoscale Superconductors
A. A. Shanenko, M. D. Croitoru, A. Vagov +1
The Cooper-pair size (i.e., the BCS coherence length) in low-dimensional superconductors is dramatically modified by quantum-size effects. In particular, for nanowires made of conv…
Magnetic-field induced quantum-size cascades in superconducting nanowires
A. A. Shanenko, M. D. Croitoru, F. M. Peeters
In high-quality nanowires, quantum confinement of the transverse electron motion splits the band of single-electron states in a series of subbands. This changes in a qualitative wa…
Generalized Galitskii approach for the vertex function of a Fermi gas with resonant interaction
A. Vagov, H. Schomerus, A. Shanenko
We present a generalized Galitskii approach for the Bethe-Salpeter equation for the two-particle vertex function of a Fermi system with resonant interaction by accounting for the r…
Size-dependent enhancement of superconductivity in nanowires
A. A. Shanenko, M. D. Croitoru, M. Zgirski +2
A shape-dependent superconducting resonance can be expected when an energy level associated with the transverse motion in a wire passes through the Fermi surface. We show that the…
Shape resonances in the superconducting order parameter of ultrathin nanowires
A. A. Shanenko, M. D. Croitoru
We study the shape resonance effect associated with the confined transverse superconducting modes of a cylindrical nanowire in the clean limit. Results of numerical investigations…
Dilute Fermi gas: kinetic and interaction energies
A. A. Shanenko
A dilute homogeneous 3D Fermi gas in the ground state is considered for the case of a repulsive pairwise interaction. The low-density (dilution) expansions for the kinetic and inte…