Creation of Spin

Tomasz Świsłocki, Michał Matuszewski

We demonstrate a method of controlled creation of spin domains in spin-1 antiferromagnetic Bose-Einstein condensates. The method exploits the phenomenon of phase separation of spin components in an external potential. By using an appropriate time dependent potential, a composition of spin domains can be created, as we demonstrate in the particular cases of a double well and a periodic potential. In contrast to other methods, which rely on spatially inhomogeneous magnetic fields, here the domain structure is completely determined by the optical fields, which makes the method versatile and reconfigurable. It allows for creation of domains of various sizes, with the spatial resolution limited by the spin healing length only.

Geoff Sharp

Tomasz Świsłocki, Michał Matuszewski

A method of controlled creation of spin domains in spin-1 antiferromagnetic Bose-Einstein condensates is demonstrated. The method exploits the phenomenon of phase separation of spin components in an external potential. By using an appropriate time-dependent potential, a composition of spin domains can be created, as demonstrated in the particular cases of a double well and a periodic potential. In contrast to other methods, which rely on spatially inhomogeneous magnetic fields, here the domain structure is completely determined by the optical fields, which makes the method versatile and reconfigurable. It allows for creation of domains of various sizes, with the spatial resolution limited by the spin healing length only.

Dominik Wildanger, Jeronimo R. Maze, S. Pezzagnia +2 more

Nanoimplantation and STED microscopy allow the creation, far-field optical polarization, and spin state read-out of single spins (NV centers in diamond) with resolution <16 nm, opening up the prospect of subdiiffraction coherent spin optical read-out.

Robert Weingard, Gerrit J. Smith