411 REFERENCE · Wiktionary
Landauer limit
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English
Landauer's principle
Alternative forms
en Landauer's limit
Etymology
After en Landauer's principle, named after German-American physicist Rolf Landauer.
Noun
en physics information theory A theoretical lower limit on the energy consumption of a computation, derived from Landauer's principle.
2012, Rolf Drechsler, Robert Wille, Reversible Circuits: Recent Accomplishments and Future Challenges for an Emerging Technology, Hafizur Rahaman, Sanatan Chattopadhyay, Santanu Chattopadhyay (editors), Progress in VLSI Design and Test: 16th International Symposium, Proceedings, Springer, Lecture Notes in Computer Science LNCS 7373, page 385,
The figure shows that today's technology is still a factor of 1,000 away from the Landauer limit and that the expected CMOS development will reduce this to a factor of 100 within the next 10 years.
en 2021 Caleb Scharf The Ascent of Information Penguin Random House (Riverhead Books) https://books.google.com.au/books?id=97UEEAAAQBAJ&pg=PA192&dq=%22Landauer+limit%22%7C%22Landauer+limits%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwih6v2Qp8T9AhXTVTABHTt7CCYQ6AF6BAhVEAI#v=onepage&q=%22Landauer%20limit%22%7C%22Landauer%20limits%22&f=false 192 This Landauer limit is simply an energy, given in equation form as kTln2 . The quantity k is a constant of nature called Boltzmann's constant. The T is the environmental temperature in Kelvin, and ln2 is the natural logarithm of two.
en 2022 Torben Ægidius Mogensen Programming Language Design and Implementation https://books.google.com.au/books?id=pIedEAAAQBAJ&pg=PA309&dq=%22Landauer+limit%22%7C%22Landauer+limits%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwih6v2Qp8T9AhXTVTABHTt7CCYQ6AF6BAhfEAI#v=onepage&q=%22Landauer%20limit%22%7C%22Landauer%20limits%22&f=false 309 Springer Using such gates, we can (at least in theory) build a computer that can compute all bijective functions with no theoretical minimum energy use. There will be some energy use (nothing is free), but it can, in theory, be much smaller than the Landauer limit. Single reversible gates that can operate using less power than the Landauer limit have been constructed, but no complex circuitry has yet been constructed from these gates.
Related terms
en Landauer erasure
Translations
theoretical lower limit on the energy consumption of a computation
French: fr
German: de
Italian: it
See also
en Landauer's principle
en Landauer's erasure principle
Further reading
Koomey's law
Limits of computation
en eponyms