[en] A formal mathematical background is developed in such a way that it determines the necessary conditions that a cluster must satisfy to reproduce, accurately, the main features of the band structure of an infinite crystal. It has been shown that, if such conditions are satisfied, the cluster energy band structure is a true image of the crystal one. (author)

No abstract available

[en] The cluster model of Buck, Dover and Vary has been used to calculate partial widths for alpha decay from the ground states of all nuclei for which experimental measurements exist. The cluster-core potential is represented by a simple three-parameter form having fixed diffuseness, a radius which scales as A^1/3 and a depth which is adjusted to fit the Q-value of the particular decay. The calculations yield excellent agreement with the vast majority of the available data, and some typical examples are presented. (author)

[en] A protocol for quantum private comparison of equality (QPCE) is proposed based on five-particle cluster state with the help of a semi-honest third party (TP). In our protocol, TP is allowed to misbehave on its own but can not conspire with either of two parties. Compared with most two-user QPCE protocols, our protocol not only can compare two groups of private information (each group has two users) in one execution, but also compare just two private information. Compared with the multi-user QPCE protocol proposed, our protocol is safer with more reasonable assumptions of TP. The qubit efficiency is computed and analyzed. Our protocol can also be generalized to the case of 2N participants with one TP. The 2N-participant protocol can compare two groups (each group has N private information) in one execution or just N private information. (paper)

[en] Short communication; 2 refs

[en] The 2nd workshop on the "State of the Art in Nuclear Cluster Physics" (SOTANCP2) took place on May 25-28, 2010, at the Universite Libre de Bruxelles (Brussels, Belgium). The first workshop of this series was held in Strasbourg (France) in 2008. The purpose of SOTANCP2 was to promote the exchange of ideas and to discuss new developments in Clustering Phenomena in Nuclear Physics and Nuclear Astrophysics both from a theoretical and from an experimental point of view

[en] New methods to identify the high- and low-spin highly deformed nuclear states are suggested. (author)

No abstract available

No abstract available

[en] A set of states in ¹⁰Be have very large α widths and very small neutron strengths. We review the data and investigate whether they are (sd)² states and/or α clusters.