Cryptography Reference
In-Depth Information
(a)
(b)
100
100
10
10
1
1
(c)
(d)
100
100
10
10
1
1
-25
0
25
50
-25
0
25
50
∆
f (kHz)
∆
f (kHz)
(e)
10
8
6
4
2
0
0
5
10
15
20
<
X
+
>
Figure 8.9
access structure. (a) Input amplitude
quadrature; (b) output amplitude quadrature; (c) input phase quadrature; (d) output
phase quadrature spectra of the secret quantum states. (e) Standard deviation contours
of Wigner functions of the secret (dark gray) and reconstructed (gray
) q
uantum states.
The dashed circle represents the inferred quantum state
Experimental results for the
{
2,3
}
X
infer
=
(
√
3
X
out
after a
local unitary operation (parametric amplification) is performed on the reconstructed
state.
)
∓
1
δ
δ
