Realizing Information Erasure in Finite Time
Abstract
In this article, we focus on erasure of a bit of information in finite time. Landauer's principle states that the average heat dissipation due to erasure of information is k_B T ln 2, which is achievable only in an asymptotic manner. Recent theoretical developments in non-equilibrium thermodynamics and stochastic control, predict a more general bound for finite time erasure dependent on the Wasserstein distances between the initial and final configurations. These predictions suggest improvements to experimental protocol with regards to minimizing average heat dissipation for bit erasure in finite time from a bistable well, under overdamped Langevin dynamics. We present a comparative study of a theoretically optimal protocol with an existing protocol, and highlight the closeness and deviation from optimality
Keywords
Cite
@article{arxiv.1809.09216,
title = {Realizing Information Erasure in Finite Time},
author = {James Melbourne and Saurav Talukdar and Murti Salapaka},
journal= {arXiv preprint arXiv:1809.09216},
year = {2018}
}
Comments
Conference on Decisions and Controls 2018