The unavoidable cost of computation revealed

  title={The unavoidable cost of computation revealed},
  author={Philip Ball},
  • P. Ball
  • Published 7 March 2012
  • Computer Science
  • Nature
Physicists have proved that forgetting is the undoing of Maxwell’s demon. 

Topics from this paper

Entropy Control in Cyber Physical Systems : How to Feed Maxwell ’ s Demon ?
The control of entropy in cyber physical system (CPS) is studied in order to better operate the physical dynamics of CPS. The controller is then regarded as the Maxwell’s demon that can decrease the
Continuing the Scaling of Digital Computing Post Moore’s Law
This report identifies four areas and research directions for ASCR and how each can be used to preserve performance scaling of digital computing beyond exascale and after Moore's law ends.
Continuing the Scaling of Digital Computing
Computer devices are nearing the limits of scaling traditional CMOS technology that up to this day follows Gordon Moore’s predictions for doubling transistor density every 24 months. In fact, CMOS


Experimental demonstration of information-to-energy conversion and validation of the generalized Jarzynski equality
Feedback mechanisms such as the ‘demon’ in Maxwell’s well-known thought experiment can, in principle, enable the transformation of information into energy, without violating the second law of
Experimental verification of Landauer’s principle linking information and thermodynamics
It is established that the mean dissipated heat saturates at the Landauer bound in the limit of long erasure cycles, demonstrating the intimate link between information theory and thermodynamics and highlighting the ultimate physical limit of irreversible computation.