Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Alternative paradigm for physical computing.

Ian Appelbaum1, J D Joannopoulos, V Narayanamurti

  • 1Department of Physics, Massachusetts Institute of Technology, Cambridge 02139, USA.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|January 7, 2003
PubMed
Summary
This summary is machine-generated.

Researchers discovered new physical systems capable of universal logic gates. Information processing in these systems relies on parameter cycling through a cusp catastrophe, demonstrated using magnetic memory.

Related Experiment Videos

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Plasmonic Metasurface "Bullets" and other "Moving Objects": Spatiotemporal Dispersion Cancellation for Linear Passive Subwavelength Slow Light.

Physical review lettersยท2019
Same author

Transparent and 'opaque' conducting electrodes for ultra-thin highly-efficient near-field thermophotovoltaic cells.

Scientific reportsยท2017
Same author

Efficient, designable, and broad-bandwidth optical extinction via aspect-ratio-tailored silver nanodisks.

Optics expressยท2016
Same author

'Squeezing' near-field thermal emission for ultra-efficient high-power thermophotovoltaic conversion.

Scientific reportsยท2016
Same author

Fundamental limits to extinction by metallic nanoparticles.

Physical review lettersยท2014
Same author

Anisotropy-driven spin relaxation in germanium.

Physical review lettersยท2014

Area of Science:

  • Physics
  • Materials Science
  • Information Theory

Background:

  • Universal logic gates are fundamental to computation.
  • Previous models often focus on electronic systems.
  • Understanding alternative physical implementations is crucial for advancing computing paradigms.

Purpose of the Study:

  • To identify and model a new class of physical systems capable of forming universal logic gates.
  • To analyze information processing within these systems using catastrophe theory.
  • To demonstrate a practical application using magnetic memory.

Main Methods:

  • Development of a model analogous to Si(100) surface dimers.
  • Analysis of fixed-point trajectories under parameter variation.
  • Application of catastrophe theory, specifically cusp-type catastrophes.
  • Construction of an example using magnetic memory.

Main Results:

  • Identification of a novel class of physical systems exhibiting universal logic gate functionality.
  • Demonstration that information processing arises from parameter cycling through a cusp catastrophe.
  • Successful application of the model to magnetic memory systems.

Conclusions:

  • Physical systems beyond conventional electronics can perform universal computation.
  • Catastrophe theory provides a powerful framework for understanding information processing in physical systems.
  • The magnetic memory example validates the theoretical model for practical implementation.