<s>
Cirq	B-Device
is	O
an	O
open-source	B-License
framework	B-Architecture
for	O
noisy	O
intermediate	O
scale	O
quantum	O
(	O
NISQ	O
)	O
computers	O
.	O
</s>
<s>
Cirq	B-Device
was	O
developed	O
by	O
the	O
Google	O
AI	O
Quantum	O
Team	O
,	O
and	O
the	O
public	O
alpha	O
was	O
announced	O
at	O
the	O
International	O
Workshop	O
on	O
Quantum	O
Software	O
and	O
Quantum	O
Machine	O
Learning	O
on	O
July	O
18	O
,	O
2018	O
.	O
</s>
<s>
A	O
demo	O
by	O
QC	O
Ware	O
showed	O
an	O
implementation	O
of	O
QAOA	O
solving	O
an	O
example	O
of	O
the	O
maximum	O
cut	O
problem	O
being	O
solved	O
on	O
a	O
Cirq	B-Device
simulator	O
.	O
</s>
<s>
Quantum	O
programs	O
in	O
Cirq	B-Device
are	O
represented	O
by	O
"	O
Circuit	O
"	O
which	O
is	O
made	O
up	O
of	O
a	O
series	O
of	O
"	O
Moments	O
"	O
representing	O
slices	O
of	O
quantum	O
gates	O
that	O
should	O
be	O
applied	O
at	O
the	O
same	O
time	O
.	O
</s>
<s>
The	O
following	O
example	O
shows	O
how	O
to	O
create	O
and	O
measure	O
a	O
Bell	O
state	O
in	O
Cirq	B-Device
.	O
</s>
<s>
OpenFermion	O
is	O
a	O
library	O
that	O
compiles	O
quantum	O
simulation	O
algorithms	O
to	O
Cirq	B-Device
.	O
</s>
<s>
TensorFlow	B-Language
Quantum	O
is	O
an	O
extension	O
of	O
TensorFlow	B-Language
that	O
allows	O
TensorFlow	B-Language
to	O
be	O
used	O
to	O
explore	O
hybrid	O
classical-quantum	O
machine	O
learning	O
algorithms	O
.	O
</s>
<s>
ReCirq	O
is	O
a	O
repository	O
of	O
research	O
projects	O
done	O
using	O
Cirq	B-Device
.	O
</s>
<s>
Qsimcirq	O
allows	O
one	O
to	O
use	O
qsim	O
from	O
within	O
Cirq	B-Device
.	O
</s>
