<s>
Conjugate	B-General_Concept
coding	I-General_Concept
is	O
a	O
cryptographic	O
tool	O
,	O
introduced	O
by	O
Stephen	O
Wiesner	O
in	O
the	O
late	O
1960s	O
.	O
</s>
<s>
It	O
is	O
part	O
of	O
the	O
two	O
applications	O
Wiesner	O
described	O
for	O
quantum	B-Device
coding	I-Device
,	O
along	O
with	O
a	O
method	O
for	O
creating	O
fraud-proof	O
banking	O
notes	O
.	O
</s>
<s>
This	O
is	O
called	O
quantum	O
multiplexing	O
and	O
it	O
uses	O
photons	B-Application
polarized	O
in	O
conjugate	O
bases	O
as	O
"	O
qubits	O
"	O
to	O
pass	O
information	O
.	O
</s>
<s>
Conjugate	B-General_Concept
coding	I-General_Concept
also	O
is	O
a	O
simple	O
extension	O
of	O
a	O
random	O
number	O
generator	O
.	O
</s>
<s>
At	O
the	O
behest	O
of	O
Charles	O
Bennett	O
,	O
Wiesner	O
published	O
the	O
manuscript	O
explaining	O
the	O
basic	O
idea	O
of	O
conjugate	B-General_Concept
coding	I-General_Concept
with	O
a	O
number	O
of	O
examples	O
but	O
it	O
was	O
not	O
embraced	O
because	O
it	O
was	O
significantly	O
ahead	O
of	O
its	O
time	O
.	O
</s>
<s>
It	O
is	O
used	O
in	O
the	O
field	O
of	O
quantum	B-Architecture
computing	I-Architecture
.	O
</s>
