Skip to main content
Quantum Computing

Return to Question

edited title
Link
glS ♦
glS ♦
  • 27.8k
  • 7
  • 40
  • 136

In quantum computaioncomputation, if the fidelity is high enough to promise over 50% success rate, is quantum error-correction still needed?

Some grammatical adjustment. Besides, your expression makes me confused with the threshold theorem from the first place.
Source Link
edit approved Dec 10, 2020 at 8:52
Yitian Wang
edit approved Dec 10, 2020 at 8:52
Yitian Wang
  • 1k
  • 7
  • 16

Let's say we have many qubits and gates. The errors happenshappen randomly, for example with a probability of 0.1% at each place(at this place, no quantum error correction is implemented). If the probability of no error occurs in the whole computation process is higher than 50%, we can repeat the computation for maybe 100 times and choose the answer apearsthat appears most to be the correct one. In this situation, it seems that error correction is not needed.

Do I misunderstand sth?

Let's say we have many qubits and gates. The errors happens randomly, for example 0.1% at each place. If the probability of no error occurs in the whole computation process is higher than 50%, we can repeat the computation for maybe 100 times and choose the answer apears most to be the correct one. In this situation, it seems that error correction is not needed.

Do I misunderstand sth?

Let's say we have many qubits and gates. The errors happen randomly, for example with a probability of 0.1% at each place(at this place, no quantum error correction is implemented). If the probability of no error occurs in the whole computation process is higher than 50%, we can repeat the computation maybe 100 times and choose the answer that appears most to be the correct one. In this situation, it seems that error correction is not needed.

Do I misunderstand sth?

Source Link
Han Bao
Han Bao
  • 61
  • 2

In quantum computaion, if the fidelity is high enough to promise over 50% success rate, is quantum error-correction still needed?

Let's say we have many qubits and gates. The errors happens randomly, for example 0.1% at each place. If the probability of no error occurs in the whole computation process is higher than 50%, we can repeat the computation for maybe 100 times and choose the answer apears most to be the correct one. In this situation, it seems that error correction is not needed.

Do I misunderstand sth?