Chengming Bai, Li Guo, and Xiang Ni Tensor solutions (r-matrices) of the classical Yang-Baxter equation (CYBE) in a Lie algebra, obtained as the classical limit of the R-matrix solution of the quantum Yang-Baxter equation, is an important structure appearing in different areas such as integrable systems, symplectic geometry, quantum g ... [J. Math. Phys.
Slawomir Klimek and Matt McBride We study a Dirac operator subject to Atiayh-Patodi-Singer-like boundary conditions on the solid torus and shows that the corresponding boundary value problem is elliptic in the sense that the Dirac operator has a compact parametrix. ... [J. Math. Phys. 52, 063518 (2011)] published Wed Jun 29, 2011.
S. L. Carvalho, C. R. de Oliveira, and R. A. Prado We study spectral properties of some discrete Dirac operators with nonzero potential only at some sparse and suitably randomly distributed positions. As observed in the corresponding Schrodinger operators, we determine the Hausdorff dimension of its spectral measure and identify a sharp spectral tra ... [J. Math. Phys.
Fabio F. G. Calabrese Pseudo-bosons in the form: a:=alpha-checka+alpha-hata, b:=beta-checka+beta-hata with [a,b]=[a,a]=I are considered, the alpha's and beta's being real coefficients which depend on real parameters s, …, s. The eigenstates of the two number operators and their norm are explicitly obtained. Pseudo ... [J. Math. Phys. 52, 072102 (2011)] published Fri Jul 15, 2011.
S. Bellucci and P. Onorato We discuss the electron transport for a spin polarized current through a ballistic quantum nanojunction formed by two quantum dots (QDs) and a semiconducting quantum wire. We explore the possibilities of designing spintronic logic gates at the nano-scale level derivedfrom this device. Just one elect ... [J. Appl. Phys.
Urban search and rescue task forces are essential for locating, stabilizing, and extricating people who become trapped in confined spaces following a catastrophic event. Sometimes the search area is too unstable for a live rescue team, so rescuers have turned to robots wielding video cameras. The rescuers control, or teleoperate, from a safe location.
In a book review in Science, SFI Faculty Chair David Krakauer reviews SuperCooperators, a new book by Martin Nowak and Roger Highfield about recent research of the evolutionary implications of altruism in human behavior.
South Korean telecommunications company SK Telecom Co., Ltd. could become the sixth telephone service operator in Brazil, Communications Minister Paulo Bernardo said in an interview in Brasilia.
Johannes Kellendonk, Konstantin Pankrashkin, and Serge Richard We study Levinson-type theorems for the family of Aharonov-Bohm models from different perspectives. The first one is purely analytical involving the explicit calculation of the wave-operators and allowing to determine precisely the various contributions to the left hand side of Levinson's theorem, n ... [J. Math. Phys.
by Laura Teixidó, Begoña Carrasco, Juan C. Alonso, Jordi Barbé, Susana Campoy