Theory

Theory

IBM’s simulator (10 × 1000 shots)

k

a₀₀

a₀₁

ε_a

b₀₀

b₀₁

ε_b

b₀₀

b₀₁

ε_b

1

0.1371

0.1371

0.2742

0.4966

0.49

0.99

0.49

0.5

0.99

2

0.0493

0.0493

0.0986

0.4996

0.49

0.99

0.49

0.5

0.99

3

0.252

0.252

0.504

0.4999

0.49

0.99

0.5

0.5

0.99

4

0.0152

0.0152

0.0304

0.5

0.5

1

0.49

0.5

1.0

5

0.0102

0.0102

0.0204

0.5

0.5

1

0.50

0.5

1.0

6

0.0073

0.0073

0.0146

0.5

0.5

1

0.49

0.5

1.0

7

0.0055

0.0055

0.011

0.5

0.5

1

0.5

0.5

1.0

Ion trap processor (1600 shots)

IBM’s 5Q (1000 shots)

IBM’s 5Q (10 × 1000 shots)

k

a₀₀

a₀₁

ε_a

b₀₀

b₀₁

ε_b

b₀₀

b₀₁

ε_b

1

0.449

0.44

0.889

0.449

0.505

0.954

0.4671

0.4802

0.9473

2

0.347

0.353

0.7

0.414

0.508

0.922

0.424

0.5053

0.9293

3

0.438

0.334

0.772

0.396

0.505

0.901

0.4036

0.5039

0.9075

4

0.422

0.336

0.758

0.397

0.507

0.904

0.3765

0.5147

0.8912

5

0.407

0.331

0.738

0.347

0.566

0.913

0.3637

0.529

0.8927

6

0.431

0.324

0.755

0.316

0.533

0.849

0.3289

0.5466

0.8755

7

0.365

0.299

0.664

0.297

0.561

0.858

0.3158

0.5425

0.8583