D-Wave and predecessors: From simulated to quantum annealing

The D-Wave computer is currently the latest link of a long chain of computers designed for the solution of optimization problems. In what sense does it realize quantum computation? We describe the evolution of such computers ...

Quantum computing machine under scrutiny

A new and innovative computing machine is currently attracting a great deal of attention in specialist circles. A team under the leadership of Matthias Troyer, a professor at ETH Zurich, has now confirmed that the machine ...

Men tend to walk slower when walking with romantic partners

When walking with female romantic partners, males tend to slow down by about 7%, according to new research published Oct 23 in the open-access journal PLOS ONE, by Cara Wall-Scheffler and colleagues at Seattle Pacific University.

Seeking out silent threats to simulation integrity

Large-scale computing has become a necessity for solving the nation's most intractable problems. Due to their sheer number of cores, high-end computers increasingly exhibit intermittently incorrect behaviors—referred to ...

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