Table 1 Optimized parameters for security rate ɛ/ℓ=10−14.

From: Tight finite-key analysis for quantum cryptography

N

Q (%)

r (%)

rrel (%)

pz (%)

Qtol (%)

ɛrob (%)

104

1.0

11.7

14.0

38.2

2.48

2.3

2.5

6.8

10.4

43.0

3.78

3.0

105

1.0

30.4

36.4

22.0

2.14

0.8

2.5

21.5

32.6

23.3

3.58

1.0

106

1.0

47.8

57.1

12.5

1.73

0.6

2.5

35.7

53.9

13.7

3.21

0.7

  1. The column labelled rrel shows the deviation of the expected secret key rate from the corresponding asymptotic value, that is, rrel:=r/(1−2h(Q)).
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