Quantum information with neutral atoms as qubits.
One of the essential features of a quantum computer is a quantum 'register' of well-characterized qubits. Neutral atoms in optical lattices are a natural candidate for such a register. We have demonstrated a patterned-loading technique that can be used to load atoms into large arrays of tightly confined but optically resolvable lattice sites. We have also seen preliminary indications of the Mott-insulator transition, which provides a route for single-atom initialization of the individual sites. Combining the two experiments should allow for large arrays of individually addressable single atoms, a system which provides a starting point for further quantum computation studies.
Porto
J V
JV
National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8424, USA.
Rolston
S
S
Laburthe Tolra
B
B
Williams
C J
CJ
Phillips
W D
WD