10.1073/pnas.98.2.410
Crossref journal-article
Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences (341)
Abstract

We propose a scheme for molecule-based information processing by combining well-studied spectroscopic techniques and recent results from chemical dynamics. Specifically it is discussed how optical transitions in single molecules can be used to rapidly perform classical (Boolean) logical operations. In the proposed way, a restricted number of states in a single molecule can act as a logical gate equivalent to at least two switches. It is argued that the four-level scheme can also be used to produce gain, because it allows an inversion, and not only a switching ability. The proposed scheme is quantum mechanical in that it takes advantage of the discrete nature of the energy levels but, we here discuss the temporal evolution, with the use of the populations only. On a longer time range we suggest that the same scheme could be extended to perform quantum logic, and a tentative suggestion, based on an available experiment, is discussed. We believe that the pumping can provide a partial proof of principle, although this and similar experiments were not interpreted thus far in our terms.

Bibliography

Kompa, K. L., & Levine, R. D. (2001). A molecular logic gate. Proceedings of the National Academy of Sciences, 98(2), 410–414.

Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 10:45 a.m.)
Deposited 3 years, 4 months ago (April 13, 2022, 5:37 p.m.)
Indexed 3 months, 2 weeks ago (May 10, 2025, 5:27 a.m.)
Issued 24 years, 7 months ago (Jan. 16, 2001)
Published 24 years, 7 months ago (Jan. 16, 2001)
Published Online 24 years, 7 months ago (Jan. 16, 2001)
Published Print 24 years, 7 months ago (Jan. 16, 2001)
Funders 0

None

@article{Kompa_2001, title={A molecular logic gate}, volume={98}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.98.2.410}, DOI={10.1073/pnas.98.2.410}, number={2}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Kompa, K. L. and Levine, R. D.}, year={2001}, month=jan, pages={410–414} }