17 citations · 82 across the 19 of their papers we have counts for
19 papers
Thermodynamic work and heat for a quantum process: Approach by Hamiltonian decomposition
Tao Zhou, Jiangyang Pu, Xiaohua Wu
The separation of internal energy into heat and work in quantum thermodynamics is a controversial issue for a long time, and we revisit and solve this problem in this work. It is s…
Quantum steering in a star network
Guangming Jiang, Xiaohua Wu, Tao Zhou
In this work, we will consider the star network scenario where the central party is trusted while all the edge parties (with a number of ) are untrusted. Network steering is def…
Detecting the genuine multipartite two-way steerability with linear steering inequalities
Guangming Jiang, Xiaohua Wu, Tao Zhou
According to the fundamental idea that a steering inequality can be constructed by just considering the measurements performed by Bob, and from the definitions of steering from Ali…
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…
A non-relativistic theory of quantum mechanics with local modulus symmetry
Tao Zhou
We have constructed a non-relativistic theory of quantum mechanics based on local modulus symmetry. The resulting connection in the covariant derivative is identified as the escape…
Averaged fidelity-based steering criteria
Xiaohua Wu, Bo You, Tao Zhou
In the present work, the averaged fidelity is introduced as the steering parameter. According to the definitions of steering from Alice to Bob, a general scheme for designing linea…
Diagnosing steerability of a bipartite state with the nonsteering threshold
Xiaohua Wu, Tao Zhou
In the present work, a traditional quantity, the averaged fidelity, is introduced as the steering parameter. From the definitions of steering from Alice to Bob and the joint measur…
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…
Optimal programmable unambiguous discriminator between two unknown latitudinal states
Xiaobing Sunian, Yuwei Li, Tao Zhou
Two unknown states can be unambiguously distinguished by a universal programmable discriminator, which has been widely discussed in previous works and the optimal solution has also…
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^{…
Geometric discord: A resource for increments of quantum key distribution through twirling
Xiaohua Wu, Tao Zhou
In the present work, we consider a scenario where an arbitrary two-qubit pure state is applied to generate a randomly distributed key via the generalized EPR protocol. Using the tw…
Success probabilities for universal unambiguous discriminators between unknown pure states
Tao Zhou
A universal programmable discriminator can perform the discrimination between two unknown states, and the optimal solution can be approached via the discrimination between the two…
Influence of detector motion on discrimination between photon polarizations
Tao Zhou, Jingxin Cui, Ye Cao
We investigate the discrimination between photon polarizations when measured by moving detectors. Both unambiguous and minimum-error discriminations are considered, and we analyze…
Group-theoretic approach for multi-copy programmable discriminators between two unknown qudit states
Tao Zhou, Xiaohua Wu, Gui Lu Long
The discrimination between two unknown states can be performed by a universal programmable discriminator, where the copies of the two possible states are stored in two program syst…
Unambiguous discrimination between two unknown qudit states
Tao Zhou
We consider the unambiguous discrimination between two unknown qudit states in -dimensional () Hilbert space. By equivalence of unknown pure states to known mixed s…
Designing the unambiguous discriminator from the one -photon interferometer
Xiaohua Wu, Yu Shaolan, Zhou Tao
In this paper, we shall show that the question of quanum state unambiguous discrimination can be solved by reducing it to the known problem of quantum states filtering.