We put our qubits
in the superposition states. They can
can last for very long times and an extreme
example
that is in some of our atomic clockwork,
we can get the coherences to last about a half
hour
and we can get fairly good control
of the quantum states which we talk about
fidelities or
errors when we manipulate the internal states
and we could do that
with now reasonably reliably with
manipulating individual qubits with maybe errors below
part 10 to the four error per operations. I'd say ions are in the
 leave there in terms of the errors per gate, the world
record. 2 qubit gate per error is
about a half a percent or so.
To make a generally viable for, to build a
big quantum computer
the entry level is to be able to
make errors
low per gate of below part ten of the 4
and we're quite a ways away from that
and then the other aspect is how we're gonna scale
this thing out. A commonality is that we
in the Ion trapping business anyway,  we think about making
arrays of traps and we can
send the information around in different
ways. One thing that we and
other groups are working on is actually move
the information by
moving the qubits and so far that
sounds maybe a little cooky but at least
this the limit
on speed is that we don't think it's
going to be how fast we can move the
qubit. There will be other things that come into play.
