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Robustness of Majorana fermions in 2D topological superconductors
Jay D. Sau, Roman M. Lutchyn, Sumanta Tewari +1
In 2D chiral p-wave superconductors, the zero-energy Majorana fermion excitations trapped at vortex cores follow non-Abelian statistics which can be potentially exploited to build…
A theorem for the existence of Majorana fermion modes in spin-orbit-coupled semiconductors
Sumanta Tewari, Jay D. Sau, S. Das Sarma
We prove an index theorem for the existence of Majorana zero modes in a semiconducting thin film with a sizable spin-orbit coupling when it is adjacent to an s-wave superconductor.…
A generic new platform for topological quantum computation using semiconductor heterostructures
Jay D. Sau, Roman M. Lutchyn, Sumanta Tewari +1
We show that a film of a semiconductor such as GaAs, in which s-wave superconductivity and a Zeeman splitting are induced by proximity effect, supports zero-energy Majorana fermion…
Optimizing Anharmonicity in Nanoscale Weak Link Josephson Junction Oscillators
R. Vijay, J. D. Sau, Marvin L. Cohen +1
Josephson tunnel junctions are widely used as nonlinear elements in superconducting circuits such as low noise amplifiers and quantum bits. However, microscopic defects in the oxid…
Theory of domain formation in inhomogeneous ferromagnetic dipolar condensates
Jay D. Sau, S. R. Leslie, D. M. Stamper-Kurn +1
Recent experimental studies of Rb spinor Bose Einstein condensates have shown the existence of a magnetic field driven quantum phase transition accompanied by structure form…