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dc.contributor.authorAhn, Kang-Hunen_US
dc.contributor.authorMohanty, Pritirajen_US
dc.coverage.spatialUnited Statesen_US
dc.date.accessioned2018-04-17T18:43:12Z
dc.date.available2018-04-17T18:43:12Z
dc.date.issued2003-02-28
dc.identifierhttps://www.ncbi.nlm.nih.gov/pubmed/12633438
dc.identifier.citationAhn, K. H., & Mohanty, P. (2003). Quantum friction of micromechanical resonators at low temperatures. Physical review letters, 90(8), 085504. doi: 10.1103/PhysRevLett.90.085504
dc.identifier.issn0031-9007
dc.identifier.urihttps://hdl.handle.net/2144/28339
dc.description.abstractDissipation of micro- and nanoscale mechanical structures is dominated by quantum-mechanical tunneling of two-level defects intrinsically present in the system. We find that at high frequencies-usually, for smaller, micron-scale structures-a novel mechanism of phonon pumping of two-level defects gives rise to weakly temperature-dependent internal friction, Q-1, concomitant to the effects observed in recent experiments. Because of their size, comparable to or shorter than the emitted phonon wavelength, these structures suffer from superradiance-enhanced dissipation by the collective relaxation of a large number of two-level defects contained within the wavelength.en_US
dc.format.extent085504 - ?en_US
dc.languageeng
dc.relation.ispartofPhys Rev Lett
dc.rights©2003 American Physical Societyen_US
dc.subjectScience & technologyen_US
dc.subjectPhysical sciencesen_US
dc.subjectPhysicsen_US
dc.subjectMechanical propertiesen_US
dc.subject2-level systemsen_US
dc.subjectSiliconen_US
dc.subjectDissipationen_US
dc.subjectMesoscale and nanoscale physicsen_US
dc.subjectGeneral physicsen_US
dc.titleQuantum friction of micromechanical resonators at low temperaturesen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevLett.90.085504
pubs.elements-sourcepubmeden_US
pubs.notesEmbargo: Not knownen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, College of Arts & Sciencesen_US
pubs.organisational-groupBoston University, College of Arts & Sciences, Department of Physicsen_US
pubs.publication-statusPublisheden_US


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