<s>
The	O
Kane	B-Device
quantum	I-Device
computer	I-Device
is	O
a	O
proposal	O
for	O
a	O
scalable	O
quantum	B-Architecture
computer	I-Architecture
proposed	O
by	O
Bruce	O
Kane	O
in	O
1998	O
,	O
who	O
was	O
then	O
at	O
the	O
University	O
of	O
New	O
South	O
Wales	O
.	O
</s>
<s>
Often	O
thought	O
of	O
as	O
a	O
hybrid	O
between	O
quantum	O
dot	O
and	O
nuclear	O
magnetic	O
resonance	B-Application
(	O
NMR	O
)	O
quantum	B-Architecture
computers	I-Architecture
,	O
the	O
Kane	O
computer	O
is	O
based	O
on	O
an	O
array	O
of	O
individual	O
phosphorus	O
donor	O
atoms	O
embedded	O
in	O
a	O
pure	O
silicon	O
lattice	O
.	O
</s>
<s>
Unlike	O
many	O
quantum	B-Architecture
computation	I-Architecture
schemes	O
,	O
the	O
Kane	B-Device
quantum	I-Device
computer	I-Device
is	O
in	O
principle	O
scalable	O
to	O
an	O
arbitrary	O
number	O
of	O
qubits	O
.	O
</s>
<s>
This	O
allows	O
them	O
to	O
be	O
addressed	O
individually	O
,	O
by	O
bringing	O
specific	O
donors	O
into	O
resonance	B-Application
with	O
the	O
applied	O
oscillating	O
magnetic	O
field	O
.	O
</s>
<s>
Nuclear	O
spin	O
is	O
useful	O
to	O
perform	O
single-qubit	O
operations	O
,	O
but	O
to	O
make	O
a	O
quantum	B-Architecture
computer	I-Architecture
,	O
two-qubit	O
operations	O
are	O
also	O
required	O
.	O
</s>
<s>
The	O
charge	O
excess	O
is	O
then	O
detected	O
using	O
a	O
single-electron	B-Algorithm
transistor	I-Algorithm
.	O
</s>
<s>
Since	O
Kane	O
's	O
proposal	O
,	O
under	O
the	O
guidance	O
of	O
Robert	O
Clark	O
and	O
now	O
Michelle	O
Simmons	O
,	O
pursuing	O
realisation	O
of	O
the	O
Kane	B-Device
quantum	I-Device
computer	I-Device
has	O
become	O
the	O
primary	O
quantum	B-Architecture
computing	I-Architecture
effort	O
in	O
Australia	O
.	O
</s>
<s>
The	O
group	O
remains	O
optimistic	O
that	O
a	O
practical	O
large-scale	O
quantum	B-Architecture
computer	I-Architecture
can	O
be	O
built	O
.	O
</s>
