Cooper-Pair Pump as a Quantized Current Source
R. Leone, L. P. Lévy, P. Lafarge
DOI 10.1103/PhysRevLett.100.117001 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
A new charge quantization in a phase-polarized Cooper-pair pump is proposed, based on the topological properties of its Hamiltonian ground state over a three-dimensional parameter space P. The charge is quantized using a set of paths in P covering the surface of a torus, and is a multiple of the integer Chern index c1 of this surface. This quantization is asymptotic but the pumped charge converges rapidly to the quantized value with the increase in the path frequency. The topological nature of the current makes this Cooper-pair pump implementation an excellent candidate for a metrological current standard.
Similar papers
The Cooper Pair Pump as a Quantized Current Source
similarity 0.91Raphaël Leone et al. · 2007 · arXiv:0711.0210
Source status unknown — claims are unverified
Topological quantization by controlled paths: Application to Cooper pairs pumps
similarity 0.89Raphael Leone & Laurent Lévy
Source status unknown — claims are unverified
Cooper-pair transistor as a minimal topological quantum circuit
similarity 0.88T. Herrig & R.-P. Riwar
Source status unknown — claims are unverified
Cooper-pair transistor as a minimal topological quantum circuit
similarity 0.88Tobias Herrig & Roman-Pascal Riwar · 2020 · arXiv:2012.10655
Source status unknown — claims are unverified
Fast and accurate Cooper pair pump
similarity 0.87Paolo A. Erdman et al.
Source status unknown — claims are unverified
Topological quantization by controlled paths: application to Cooper pairs pumps
similarity 0.87Raphaël Leone & Laurent Lévy · 2007 · arXiv:0711.0586
Source status unknown — claims are unverified