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State-Quantum-Chemistry Set in a Photonic Framework
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.
2017 (English)In: Advances in Quantum Chemistry: Lowdin Volume / [ed] Sabin, JR Brandas, EJ, ELSEVIER ACADEMIC PRESS INC , 2017, p. 227-251Chapter in book (Refereed)
Abstract [en]

The photonic scheme provides an abstract perspective to describing chemical and physical processes; it is well adapted for biologically sustained processes too. The scheme is used to help analyze semiclassic pictures in order for a deeper understanding of natural processes to arise.

A q-state is not an object (eg, a molecule) but convoluted with a photon field, it hangs somehow on sensitive surfaces revealing an image constructed from q-events: these q-events are joint q-energy and angular momentum bridging probe-to-probing systems. Exchanges between physical states and probing ones establish a reality for a q-state.

Thus, in the photonic scheme, a q-state may emerge as an image if appropriately recorded via q-events. Initially collected q-events seem to indicate a random process. However, after gathering these q-events in sufficient numbers, as in a two-slit example, a supportive image develops corresponding more and more to what is known as an interference pattern.

Moreover, the unlocking of a spin-triplet state is used to illustrate applications: for instance, the opening required a path starting from a parent spin-singlet excited electronic state. A low-frequency multiphoton mechanism regulated by conservation laws permits the description of a triplet state activation.

Of course, the materiality sustaining a q-state must transfer information that is richer than that a classical particle impact would convey. The use we make of quantum mechanics is basically the same that everyone does though without current interpretations; inclusion of photon fields makes the difference by providing quantum mechanisms to accomplish measurements.

Place, publisher, year, edition, pages
ELSEVIER ACADEMIC PRESS INC , 2017. p. 227-251
Series
Advances in Quantum Chemistry, ISSN 0065-3276 ; 74
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-357083DOI: 10.1016/bs.aiq.2016.07.001ISI: 000429415100012ISBN: 978-0-12-809988-9 (electronic)OAI: oai:DiVA.org:uu-357083DiVA, id: diva2:1238170
Available from: 2018-08-13 Created: 2018-08-13 Last updated: 2018-08-13Bibliographically approved

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