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Issues
May 1991
ISSN 0031-9228
EISSN 1945-0699
Reference Frame
Letters
Search and Discovery
Articles
Information is Physical
Physics Today 44 (5), 23–29 (1991);
https://doi.org/10.1063/1.881299
There are no unavoidable energy consumption requirements per step in a computer. Related analysis has provided insights into the measurement process and the communication schannel, and has prompted speculations about the nature of physical laws.
Localization of Light
Physics Today 44 (5), 32–40 (1991);
https://doi.org/10.1063/1.881300
Light in certain dielectric microstructures exhibits localized modes, similar to the localized wavefunctions of electrons in disordered solids. These microstructures show new effects in both classical optics and quantum electrodynamics.
Shaping the Future: Science and Technology 2030
Physics Today 44 (5), 42–49 (1991);
https://doi.org/10.1063/1.881301
Questions about today's science policies and education will need to be answered with vision and boldness for a robust and productive future.
Physics Community
Opinion
Books
Science and Cultural Crisis: An Intellectual Biography of Percy Williams Bridgman
Physics Today 44 (5), 63–64 (1991);
https://doi.org/10.1063/1.2810113
