Uncertainty principle for experimental measurements: Fast versus slow probes
Hansmann P, Ayral T, Tejeda A, Biermann S (2016)
Publication Type: Journal article
Publication year: 2016
Journal
Book Volume: 6
DOI: 10.1038/srep19728
Abstract
The result of a physical measurement depends on the time scale of the experimental probe. In solid-state systems, this simple quantum mechanical principle has far-reaching consequences: the interplay of several degrees of freedom close to charge, spin or orbital instabilities combined with the disparity of the time scales associated to their fluctuations can lead to seemingly contradictory experimental findings. A particularly striking example is provided by systems of adatoms adsorbed on semiconductor surfaces where different experiments-angle-resolved photoemission, scanning tunneling microscopy and core-level spectroscopy-suggest different ordering phenomena. Using most recent first principles many-body techniques, we resolve this puzzle by invoking the time scales of fluctuations when approaching the different instabilities. These findings suggest a re-interpretation of ordering phenomena and their fluctuations in a wide class of solid-state systems ranging from organic materials to high-temperature superconducting cuprates.
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France (FR)How to cite
APA:
Hansmann, P., Ayral, T., Tejeda, A., & Biermann, S. (2016). Uncertainty principle for experimental measurements: Fast versus slow probes. Scientific Reports, 6. https://doi.org/10.1038/srep19728
MLA:
Hansmann, Philipp, et al. "Uncertainty principle for experimental measurements: Fast versus slow probes." Scientific Reports 6 (2016).
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