The lightness of being: Smaller computer logic components through photon-molecule interaction

In the unending effort to reduce the size of computing nodes, scientists at University of Liège, Belgium, The Hebrew University, Jerusalem, University of Padova, Italy, and University of California, Los Angeles have employed molecules for the task of evaluating logic functions. Their bilinear process – which detects and measures interactions between light and matter through a synthesis of two-dimensional three-photon echo spectroscopy and Lie algebra – is more effective if multiple operations are performed in parallel, thereby supporting both binary and quaternary logic. Moreover, say the researchers, their simulations enhance classical logic complexity by allowing relaxation by weak coupling to the environment.

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