Ultrafast coherent excitation of a trapped ion qubit for fast gates and photon frequency qubits.
We demonstrate ultrafast coherent excitation of an atomic qubit stored in the hyperfine levels of a single trapped cadmium ion. Such ultrafast excitation is crucial for entangling networks of remotely located trapped ions through the interference of photon frequency qubits, and is also a key component for realizing ultrafast quantum gates between Coulomb-coupled ions.
Madsen
M J
MJ
FOCUS Center and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA. madsenm@wabash.edu
Moehring
D L
DL
Maunz
P
P
Kohn
R N
RN
Duan
L-M
LM
Monroe
C
C