Microfabricated surface-electrode ion trap for scalable quantum information processing.
Individual laser-cooled 24Mg+ ions are confined in a linear Paul trap with a novel geometry where gold electrodes are located in a single plane and the ions are trapped 40 microm above this plane. The relatively simple trap design and fabrication procedure are important for large-scale quantum information processing (QIP) using ions. Measured ion motional frequencies are compared to simulations. Measurements of ion recooling after cooling is temporarily suspended yield a heating rate of approximately 5 motional quanta per millisecond for a trap frequency of 2.83 MHz, sufficiently low to be useful for QIP.
Seidelin
S
S
Time and Frequency Division, NIST, Boulder, Colorado 80305, USA. sidelin@boulder.nist.gov
Chiaverini
J
J
Reichle
R
R
Bollinger
J J
JJ
Leibfried
D
D
Britton
J
J
Wesenberg
J H
JH
Blakestad
R B
RB
Epstein
R J
RJ
Hume
D B
DB
Itano
W M
WM
Jost
J D
JD
Langer
C
C
Ozeri
R
R
Shiga
N
N
Wineland
D J
DJ