5 citations · 13 across the 9 of their papers we have counts for
9 papers
The advantage of the concatenated three-qubit codes
Long Huang
In this work, the efficient quantum error-correction protocol against the general independent noise is constructed with the three-qubit codes. The rules of concatenation are summar…
New construction of nine-qubit error-correcting code
Long Huang, Xiaohua Wu
We report new construction of nine-qubit error-correcting code, which introduces two new nine-qubit codes and one new three-qubit code. Because both the new two nine-qubit codes ha…
Classification and purification for the independent quantum channel through quantum error-correction
Long Huang, Xiaohua Wu, Tao Zhou
The essence of quantum error-correction is to use redundant Hilbert space to identify and correct errors, and the channel fidelity of the quantum channel does not affect which erro…
Robustness of the concatenated quantum error-correction protocol against noise for channels affected by fluctuation
Long Huang, Xiaohua Wu, Tao Zhou
In quantum error correction, the description of noise channel cannot be completely accurate, and fluctuation always appears in noise channel. It is found that when fluctuation of p…
Certifying quantumness with the classical fidelity threshold
Long Huang, Xiaohua Wu, Tao Zhou
For a given ensemble of input and target states, the classical fidelity threshold (CFT) is the maximum valve of the averaged fidelity, and it can be achieved with a measure-and-pre…
Performance of five-qubit code for arbitrary error channels
Long Huang, Xiaohua Wu, Tao Zhou
In quantum error correction, it is an important assumption that errors on different qubits are independent. In our previous work [Phys. Rev. A {\bf 92}, 052320 (2015)], the general…
Pryce's mass-center operators and the anomalous velocity of a spinning electron
Long Huang, Xiaohua Wu, Tao Zhou
In the present work, we develop a method to calculate the anomalous velocity of a spinning electron. From Dirac equation, the relationships among the expectation values of the Pryc…
Generality of the concatenated five-qubit code
Long Huang, Bo You, Xiaohua Wu +1
In this work, a quantum error correction (QEC) procedure with the concatenated five-qubit code is used to construct a near-perfect effective qubit channel (with a error below $10^{…
A protocol to estimate the average fidelity of the bipartite system
Long Huang, Xiaohua Wu
In present work, we shall develope a protocol to estimate the average fidelity for the bipartite system. We show that the average fidelity should be known if the three measurable q…