Continuous-variable quantum-state sharing via quantum disentanglement

Quantum-state sharing is a protocol where perfect reconstruction of quantum states is achieved with incomplete or partial information in a multipartite quantum network. Quantum-state sharing allows for secure communication in a quantum network where partial information is lost or acquired by malicious parties. This protocol utilizes entanglement for the secret-state distribution and a class of quantum disentangling protocols for the state reconstruction. We demonstrate a quantum-state sharing protocol in which a tripartite entangled state is used to encode and distribute a secret state to three players. Any two of these players can collaborate to reconstruct the secret state, while individual players obtain no information. We investigate a number of quantum disentangling processes and experimentally demonstrate quantum-state reconstruction using two of these protocols. We experimentally measure a fidelity, averaged over all reconstruction permutations, of F=0.73 +/- 0.02. A result achievable only by using quantum resources.

An examination of the factors that influence identification and acculturation

This paper investigated the effects of print media exposure and intergroup contact on ethnic identification and acculturation attitudes of Chinese immigrants. Data was gathered from a survey participated by 265 respondents of Chinese origin. Findings indicated that exposure to the print media did not have a significant effect on ethnic identification and/or acculturation orientation. However, when the factor of intergroup contact was taken into consideration, differences began to occur. Specifically, for respondents from low intergroup contact group, ethnic identification increased with the desire to integrate into the large culture. For respondents from high intergroup contact group, opposite trends were found, i.e. as ethic identification increased, the tendency to adopt integration orientation decreased. Findings from this study suggested the need to combine factors of both interpersonal and mediated communication in the examination of ethnic identification and acculturation. This paper also drew some implications for the media industry and government policies.

Australian patient safety survey

The national telephone survey found that 6.5% of respondents reported experiencing a medical adverse event during the preceding 12 months. Most reported were medication incidents, with misdiagnosis or wrong treatment second most common. Predictors of adverse event reporting included health status, hospital admission, and length of time seeing regular doctor.