one the key problems
you'll be reading about
in this special issue on a topological quantum computing
is known to extract information which were hidden inside a total articulate
you don't look you behind the information from the environment
and that intensity information from the coherence
but this very same property
makes it very difficult to extract information once you needed
this is the major problem
and in this work
we go one way around
this is a proposal
to use the flux to read to read out the state of the topological q
but
welcome back to this device in just a moment
let me first walk you through the basic mechanism
the topological cube it consists of
ward distance
in a super conductor
and together these two voices encode the state different you
they do this in such a way that the state of the cube it is
protected from perturbations asking only on one of the
basically the state of the cubic zero if the party of the number of elections
in the superconducting i don't even
and the state is one
the better results
no you would like to read out the state
without actually counting the elections
and the way to do this is to the fact call the
however cash effect
i perfect states
then be more cakes encircling superconducting either
would be classification
which is determined by the parity of the number of particles
inside the i don't
this looks good
but there is a problem with this effect
which is that i mean cost of work is to switch
or differences which are used to define a topological humans
these are massive classical objects
they do not interfere
so this would not work
our proposal is to work around this
by using another type of forty six
which have no for
it is the normal core of the because for texas
basically this whole superconducting
which makes the mess
so we would like to use corners boxes
these exist "'cause" shows a simple pieces and eleven injunction joe's injunction which is just
a tunnel battery across the superconducting
and the chosen for this is will address along the tunnel junction
some of the superconducting i don't
ending because of what pieces and thereby measured already
of number of the lectures and read out that a large document
no the device which we propose is a hybrid devices
it consists of a superconducting bring
this is the flux you met
according to superconducting drinkers little clockwise
what counterclockwise
and its interface with a topological cute
in this particular we get a station the role of because the forties this is
clearly time domain blocks
your
and you more select one
so here we have a hybrid system consisting of a topological q but these
white dots which store
one of them information in a way which is topological protected
and the momel documents
which is able to provide computed by the time of crusher effect
and thereby can be out the state of the stuff like to compute
so this is a device which
we hope
combines the best of both worlds
the ease with which class to which is a conventional q but can be read
out
and the protection against incoherence from the environment
which is offered by topological q