http://avlsi.csl.yale.edu/~rajit/abstracts/async-case.html

    A Case for Asynchronous Computer Architecture

    Rajit Manohar
    ------------------------------------------------------------
    We present a summary of the state-of-the art in asynchronous
    VLSI and architecture. We present several reasons for
    adopting an asynchronous approach to computer architecture,   
    including lower design complexity, reduced
    energy-complexity, and average-case performance. In
    particular, we describe why formal synthesis techniques for
    asynchronous design dramatically reduce design time, and
    present some examples that describe how asynchronous
    techniques can lead to a reduction in the energy-complexity
    of VLSI systems.

   
  Yale