Physics @ Berkeley
Events in Physics
Title: Quantum Networks Of Atoms    (Colloquia)
Start Date: 02/09/2009
Time: 4:30 pm
Location: 1 LeConte
Speaker: Chris Monroe
Affiliation: University of Maryland

Trapped atomic ions are among the most promising candidates for a future quantum information processor. All of the fundamental quantum operations have been demonstrated on this system, and the central challenge now is how to scale to larger numbers of qubits.  The conventional approach to forming entangled states of multiple trapped ion qubits is through the local Coulomb interaction accompanied by appropriate state-dependent optical forces.  Recently, trapped ion qubits have been entangled through a photonic coupling, allowing atomic qubit memories to be entangled and quantum information to be “teleported” over a large distance.  I will discuss several options and issues for such atomic quantum networks, along with state-of-the-art experimental progress.