Over the past decade cold atoms trapped in optical lattices – periodic potentials formed by laser standing waves – have emerged as a powerful tool to implement and study prototype quantum devices. I will review our ongoing effort to encode qubits in the ground hyperfine manifold of Cs atoms, and to perform entangling quantum gate operations between them. Of course, the prospects of building even small quantum processors in this fashion depend crucially on our ability to initialize, manipulate and measure the quantum state of atomic spinor wavepackets trapped in optical lattices. I will discuss some of our recent experiments and ideas in this area, including Raman sideband cooling, qubit control and quantum state tomography.
Copyright. All Rights Reserved.