Universal Bound on Energy Cost of Bit Reset in Finite Time.

  title={Universal Bound on Energy Cost of Bit Reset in Finite Time.},
  author={Yi-Zheng Zhen and Dario Egloff and Kavan Modi and Oscar C. O. Dahlsten},
  journal={Physical review letters},
  volume={127 19},
We consider how the energy cost of bit reset scales with the time duration of the protocol. Bit reset necessarily takes place in finite time, where there is an extra penalty on top of the quasistatic work cost derived by Landauer. This extra energy is dissipated as heat in the computer, inducing a fundamental limit on the speed of irreversible computers. We formulate a hardware-independent expression for this limit in the framework of stochastic processes. We derive a closed-form lower bound on… 

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