76 citations · 216 across the 8 of their papers we have counts for
8 papers · 1 filter
Practically secure quantum bit commitment based on quantum seals
Guang Ping He, Z. D. Wang
The relationship between the quantum bit commitment (QBC) and quantum seal (QS) is studied. It is elaborated that QBC and QS are not equivalent, but QS protocols satisfying a stron…
An additive and operational entanglement measure: conditional entanglement of mutual information
Dong Yang, Michal Horodecki, Z. D. Wang
Based on the monogamy of entanglement, we develop the technique of quantum conditioning to build an {\it additive} entanglement measure: the conditional entanglement of mutual info…
Physical implementation of topologically decoherence-protected superconducting qubits
Zheng-Yuan Xue, Z. D. Wang, Shi-Liang Zhu
We propose a scenario to physically implement a kind of topologically decoherence-protected qubit using superconducting devices coupled to a micro-wave cavity mode with unconventio…
Simple unconventional geometric scenario of one-way quantum computation with superconducting qubits inside a cavity
Zheng-Yuan Xue, Z. D. Wang
We propose a simple unconventional geometric scenario to achieve a kind of nontrivial multi-qubit operations with superconducting charge qubits placed in a microwave cavity. The pr…
Quantum Critical Dynamics of A Qubit Coupled to An Isotropic Lipkin-Meshkov-Glick Bath
H. T. Quan, Z. D. Wang, C. P. Sun
We explore a dynamic signature of quantum phase transition (QPT) in an isotropic Lipkin-Meshkov-Glick (LMG) model by studying the time evolution of a central qubit coupled to it. W…
Conditional Entanglement
Dong Yang, Michal Horodecki, Z. D. Wang
Based on the ideas of {\it quantum extension} and {\it quantum conditioning}, we propose a generic approach to construct a new kind of entanglement measures called {\it conditional…