About: Can We Break the Landauer Bound in Spin-Based Electronics?

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type	http://eprints.org/ontology/ArticleEPrint http://eprints.org/ontology/ArticleEPrint http://eprints.org/ontology/EPrint http://eprints.org/ontology/EPrint Article Article Academic Article Academic Article
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Title	Can We Break the Landauer Bound in Spin-Based Electronics? Can We Break the Landauer Bound in Spin-Based Electronics?
described by	https://demo.openlinksw.com/about/id/entity/https/www.cs.kent.ac.uk/people/staff/akj22/materials/CO644/export_kar_RDFN3.n3 https://demo.openlinksw.com/about/id/entity/https/raw.githubusercontent.com/annajordanous/CO644Files/main/export_kar_RDFN3.n3
Date	2021-04-29 2021-04-29
Creator	Frank Z. Wang Frank Z. Wang
status	peer reviewed peer reviewed published published
Publisher	IEEE IEEE
abstract	We found that the minimum energy of reading or erasing a spin datum should be expressed by delta E = 2uBB, in contrast to delta E = kBTln(2) proposed by Landauer in 1961. The physics of using a spin'sorientation to represent a bit of information is fundamentally different from that of using a particle's position in classical charge-based data storage: the former is quantum-dynamic (independent of temperature below the Curie point), whereas the latter is thermodynamic (dependent on temperature). Quantitatively, this newenergy bound associated with a new information erasure protocol was estimated as 1.64e-36 J, 15 orders of magnitude lower than the Landauer bound (3e-21 J), at no cost of angular momentum and increasedtotal entropy. In this new information erasure protocol, there is no need to move the electron from one side of the potential well to the other side otherwise the energy used to retain the defined spin state still needs to be greater than the existing thermal fluctuation (the Landauer bound). We verified our new energy bound based on a number of experiments including the Rydberg atom and the spin-spin interaction. We found that the minimum energy of reading or erasing a spin datum should be expressed by delta E = 2uBB, in contrast to delta E = kBTln(2) proposed by Landauer in 1961. The physics of using a spin'sorientation to represent a bit of information is fundamentally different from that of using a particle's position in classical charge-based data storage: the former is quantum-dynamic (independent of temperature below the Curie point), whereas the latter is thermodynamic (dependent on temperature). Quantitatively, this newenergy bound associated with a new information erasure protocol was estimated as 1.64e-36 J, 15 orders of magnitude lower than the Landauer bound (3e-21 J), at no cost of angular momentum and increasedtotal entropy. In this new information erasure protocol, there is no need to move the electron from one side of the potential well to the other side otherwise the energy used to retain the defined spin state still needs to be greater than the existing thermal fluctuation (the Landauer bound). We verified our new energy bound based on a number of experiments including the Rydberg atom and the spin-spin interaction.
Is Part Of	IEEE Access IEEE Access https://kar.kent.ac.uk/id/repository https://kar.kent.ac.uk/id/repository
Subject	Q Science Q Science QA 75 Electronic computers. Computer science QA 75 Electronic computers. Computer science
list of authors	https://kar.kent.ac.uk/id/eprint/88045#authors https://kar.kent.ac.uk/id/eprint/88045#authors
volume	9 9
is topic of	https://www.cs.kent.ac.uk/people/staff/akj22/materials/CO644/export_kar_RDFN3.n3 https://raw.githubusercontent.com/annajordanous/CO644Files/main/export_kar_RDFN3.n3
is primary topic of	HTML Summary of #88045 Can We Break the Landauer Bound in Spin-Based Electronics? HTML Summary of #88045 Can We Break the Landauer Bound in Spin-Based Electronics?

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