Digital information may appear to exist as abstract ones and zeroes, flipping effortlessly from one to another. But in fact there is a minimum amount of energy required to run any computation system, regardless of how “energy efficient” are its component parts.
The Earth has been through a lot of changes in its 4.5 billion year history, including a shift to incorporating and retaining volatile compounds such as water, nitrogen and carbon from the atmosphere in the mantle before spewing them out again through volcanic eruptions.
In research published 18 July in Physical Review X, an international team shows that a quantum computer is less in thrall to the arrow of time than a classical computer. In some cases, it's as if the quantum computer doesn't need to distinguish between cause and effect at all.
Graça Vicente (Ph.D., chemistry, '90), distinguished professor at Louisiana State University, has received the Presential Award for Excellence in Science, Mathematics and Engineering Mentoring, or PAESMEM. PAESMEM recognizes outstanding efforts of mentors in encouraging the next generation of innovators and developing a science and engineering workforce that reflects the diverse talent of America. Vicente received her doctorate at UC Davis under the direction of Professor Emeritus Kevin Smith.
Sethanne Howard (B.S., physics, '65) is the editor of the Journal of the Washington Academy of Sciences — a peer-reviewed scientific journal more than a century old. She is always soliciting papers and will also work with advanced students to publish their papers.
Tudor Dan Dimofte, assistant professor in the Department of Mathematics in the UC Davis College of Letters and Science, has received a prestigious CAREER award from the National Science Foundation’s Computer and Information Science and Engineering directorate.