Autonomous conversion of information to work in quantum dots
Sánchez, Rafael ; Samuelsson, Peter LU and Potts, Patrick P. LU
(2019)
In Physical Review Research
1(3).
- Abstract
- We consider an autonomous implementation of Maxwell's demon in a quantum dot architecture acting on a system without changing its number of particles or its energy. As in the original thought experiment, only the second law of thermodynamics is seemingly violated when disregarding the demon. The autonomous architecture allows us to compare descriptions in terms of information to a more traditional, thermoelectric characterization. Our detailed investigation of information-to-work conversion is based on fluctuation relations and second-law-like inequalities in addition to the average heat and charge currents. By introducing a time reversal on the level of individual electrons, we find a fluctuation relation that is not connected to any... (More)
- We consider an autonomous implementation of Maxwell's demon in a quantum dot architecture acting on a system without changing its number of particles or its energy. As in the original thought experiment, only the second law of thermodynamics is seemingly violated when disregarding the demon. The autonomous architecture allows us to compare descriptions in terms of information to a more traditional, thermoelectric characterization. Our detailed investigation of information-to-work conversion is based on fluctuation relations and second-law-like inequalities in addition to the average heat and charge currents. By introducing a time reversal on the level of individual electrons, we find a fluctuation relation that is not connected to any symmetry of the moment-generating function of heat and particle flows. Furthermore, we show how an effective Markovian master equation with broken detailed balance for the system alone can emerge from a full description, allowing for an investigation of the entropic cost associated with breaking detailed balance. Interestingly, while the entropic cost of performing a perfect measurement diverges, the entropic cost of breaking detailed balance does not. Our results connect various approaches and idealized scenarios found in the literature and can be tested experimentally with present-day technology. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/bbca0572-55d1-40a7-b6c1-889affa14cbb
- author
- Sánchez, Rafael
; Samuelsson, Peter
LU
and Potts, Patrick P.
LU
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Research
- volume
- 1
- issue
- 3
- article number
- 033066
- publisher
- American Physical Society
- external identifiers
-
- scopus:85075783302
- ISSN
- 2643-1564
- DOI
- 10.1103/PhysRevResearch.1.033066
- language
- English
- LU publication?
- yes
- id
- bbca0572-55d1-40a7-b6c1-889affa14cbb
- alternative location
- https://link.aps.org/doi/10.1103/PhysRevResearch.1.033066
- date added to LUP
- 2020-02-05 21:00:23
- date last changed
- 2023-11-08 02:50:52
@article{bbca0572-55d1-40a7-b6c1-889affa14cbb,
abstract = {{We consider an autonomous implementation of Maxwell's demon in a quantum dot architecture acting on a system without changing its number of particles or its energy. As in the original thought experiment, only the second law of thermodynamics is seemingly violated when disregarding the demon. The autonomous architecture allows us to compare descriptions in terms of information to a more traditional, thermoelectric characterization. Our detailed investigation of information-to-work conversion is based on fluctuation relations and second-law-like inequalities in addition to the average heat and charge currents. By introducing a time reversal on the level of individual electrons, we find a fluctuation relation that is not connected to any symmetry of the moment-generating function of heat and particle flows. Furthermore, we show how an effective Markovian master equation with broken detailed balance for the system alone can emerge from a full description, allowing for an investigation of the entropic cost associated with breaking detailed balance. Interestingly, while the entropic cost of performing a perfect measurement diverges, the entropic cost of breaking detailed balance does not. Our results connect various approaches and idealized scenarios found in the literature and can be tested experimentally with present-day technology.}},
author = {{Sánchez, Rafael and Samuelsson, Peter and Potts, Patrick P.}},
issn = {{2643-1564}},
language = {{eng}},
number = {{3}},
publisher = {{American Physical Society}},
series = {{Physical Review Research}},
title = {{Autonomous conversion of information to work in quantum dots}},
url = {{http://dx.doi.org/10.1103/PhysRevResearch.1.033066}},
doi = {{10.1103/PhysRevResearch.1.033066}},
volume = {{1}},
year = {{2019}},
}