Universality in low-dimensional BCS theory
It is a remarkable property of BCS theory that the ratio of the energy gap at zero temperature
Ξ and the critical temperature T c is (approximately) given by a universal constant …
Ξ and the critical temperature T c is (approximately) given by a universal constant …
Degeneracy between even- and odd-parity superconductivity in the quasi-one-dimensional Hubbard model and implications for
T Scaffidi - Physical Review B, 2023 - APS
Based on a weak coupling calculation, we show that an accidental degeneracy appears
between even-and odd-parity superconductivity in the quasi-one-dimensional (1D) limit of …
between even-and odd-parity superconductivity in the quasi-one-dimensional (1D) limit of …
Universal behavior of the BCS energy gap
the BCS order parameter) at all temperatures 0 Ä T Ä Tc up to the critical one, Tc, and show
that, in the limit of weak coupling, the ratio „. T/= Tc is given by a universal function of the …
that, in the limit of weak coupling, the ratio „. T/= Tc is given by a universal function of the …
Type-1.5 superconductivity in multicomponent systems
In general a superconducting state breaks multiple symmetries and, therefore, is
characterized by several different coherence lengths ξ i, i= 1,…, N. Moreover in multiband …
characterized by several different coherence lengths ξ i, i= 1,…, N. Moreover in multiband …
Microscopic Ginzburg-Landau theory and singlet ordering in
The long-standing quest to determine the superconducting order of Sr 2 RuO 4 (SRO) has
received renewed attention after recent nuclear magnetic resonance (NMR) Knight shift …
received renewed attention after recent nuclear magnetic resonance (NMR) Knight shift …
Almost flat angles in surface superconductivity
Type-II superconductivity is known to persist close to the sample surface in presence of a
strong magnetic field. As a consequence, the ground state energy in the Ginzburg–Landau …
strong magnetic field. As a consequence, the ground state energy in the Ginzburg–Landau …
Ubiquity of superconducting domes in the bardeen-cooper-schrieffer theory with finite-range potentials
Based on recent progress in mathematical physics, we present a reliable method to
analytically solve the linearized Bardeen-Cooper-Schrieffer (BCS) gap equation for a large …
analytically solve the linearized Bardeen-Cooper-Schrieffer (BCS) gap equation for a large …
Effects of corners in surface superconductivity
Abstract We study the Ginzburg–Landau functional describing an extreme type-II
superconductor wire with cross section with finitely many corners at the boundary. We derive …
superconductor wire with cross section with finitely many corners at the boundary. We derive …
Microscopic derivation of Ginzburg-Landau theory and the BCS critical temperature shift in a weak homogeneous magnetic field
Abstract Starting from the Bardeen–Cooper–Schrieffer (BCS) free energy functional, we
derive the Ginzburg–Landau functional in the presence of a weak homogeneous magnetic …
derive the Ginzburg–Landau functional in the presence of a weak homogeneous magnetic …
Degeneracy between even-and odd-parity superconductivity in the quasi-1D Hubbard model and implications for Sr2RuO4
T Scaffidi - arxiv preprint arxiv:2007.13769, 2020 - arxiv.org
Based on a weak coupling calculation, we show that an accidental degeneracy appears
between even-and odd-parity superconductivity in the quasi-1D limit of the repulsive …
between even-and odd-parity superconductivity in the quasi-1D limit of the repulsive …