Optical Maxwell's demon phase space theory and its efficiency improvement to 90 % with local online squeezing

Shengli Zhang*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A Maxwell's demon is a being with the ability to extract work from information. Recently, an optical simulator of Maxwell's demon was experimentally demonstrated. Here, we formulate the power of Maxwell's demon using the phase space method, which enables a clear explanation of power optimality at 16/27. We apply our phase space method to determine if local online squeezing might improve the demon's performance. Local online squeezing will alter photon statistics, and it is difficult to derive a strict (no approximation) closed formula for efficiency in the photon number space. We observe that phase space shows improvement in the demon's efficiency from 59 percent to 90 percent with online squeezing, for approximately 51.93 percent enhancement. Our work provides a simple and deterministic method to enhance the efficiency of Maxwell's demon.

Original languageEnglish
Title of host publication13th International Conference on Wireless Communications and Signal Processing, WCSP 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665407854
DOIs
Publication statusPublished - 2021
Event13th International Conference on Wireless Communications and Signal Processing, WCSP 2021 - Virtual, Online, China
Duration: 20 Oct 202122 Oct 2021

Publication series

Name13th International Conference on Wireless Communications and Signal Processing, WCSP 2021

Conference

Conference13th International Conference on Wireless Communications and Signal Processing, WCSP 2021
Country/TerritoryChina
CityVirtual, Online
Period20/10/2122/10/21

Keywords

  • Optical Maxwell's demon
  • local online squeeziing
  • phase space theory

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