- #1
Pattarasak
- 10
- 0
Hello everyone, I don't know how to measure the QBER of BB84 protocol in a realistic experiment.In the most paper show the data which is only the number but do not show the unit of data, what is the unit of these data?
The qubit error rate refers to the rate at which errors occur in the transmission and measurement of qubits in the BB84 protocol for quantum key distribution (QKD). This can be caused by various factors such as noise in the communication channel, imperfections in the hardware, or eavesdropping attempts.
The qubit error rate is typically measured by comparing the expected outcomes of the qubit measurements with the actual outcomes. This can be done during the key generation phase or through error correction protocols. The lower the qubit error rate, the more secure the key generated through QKD will be.
An acceptable qubit error rate in QKD BB84 protocol depends on the specific implementation and security requirements. Generally, a qubit error rate of less than 1% is considered secure for most applications. However, for more sensitive data, a lower error rate may be required.
There are several techniques that can help reduce the qubit error rate in QKD BB84 protocol. These include using error correction codes, implementing quantum error correction techniques, using higher quality hardware, and optimizing the communication channel to reduce noise and interference.
The qubit error rate directly affects the security of QKD BB84 protocol as it can lead to errors in the generated key. A higher error rate increases the chances of an eavesdropper intercepting and decoding the key, compromising its security. Therefore, it is important to keep the qubit error rate as low as possible in QKD BB84 protocol to ensure the security of the key exchange.