Engineering the spin couplings in atomically crafted spin chains on an elemental superconductor

Applications of spin-spin couplings

The material in this chapter covers the period from 1 June 2009 to 31 May 2010. It has been arranged as was done previously, i.e. according to (i) the increasing atomic number of the nuclei involved, and (ii) the number of the bonds separating them. We follow the IUPAC recommendations with one notable exception, namely, the nucleus with the smaller mass is given first. For the sake of simplicit...

Clocked single-spin source based on a spin-split superconductor

Wepropose an accurate clocked single-spin source for ac-spintronic applications. Our device consists of a superconducting island covered by a ferromagnetic insulator (FI) layer throughwhich it is coupled to superconducting leads. Single-particle transfer relies on the energy gaps and the islandʼs charging energy, and is enabled by a bias and a time-periodic gate voltage. Accurate spin transfer ...

Optical switching of nuclear spin–spin couplings in semiconductors

Two-qubit operation is an essential part of quantum computation. However, solid-state nuclear magnetic resonance quantum computing has not been able to fully implement this functionality, because it requires a switchable inter-qubit coupling that controls the time evolutions of entanglements. Nuclear dipolar coupling is beneficial in that it is present whenever nuclear-spin qubits are close to ...

Spin Chains in Combinatorics

We give a review of the elementary properties of spin chains together with some applications to the enumeration of alternating sign matrices. The main references concerning spin chains are [1, 2].

N-H spin-spin couplings: probing hydrogen bonds in proteins.