Quantum friction of micromechanical resonators at low temperatures
dc.contributor.author | Ahn, Kang-Hun | en_US |
dc.contributor.author | Mohanty, Pritiraj | en_US |
dc.coverage.spatial | United States | en_US |
dc.date.accessioned | 2018-04-17T18:43:12Z | |
dc.date.available | 2018-04-17T18:43:12Z | |
dc.date.issued | 2003-02-28 | |
dc.identifier | https://www.ncbi.nlm.nih.gov/pubmed/12633438 | |
dc.identifier.citation | Ahn, 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.issn | 0031-9007 | |
dc.identifier.uri | https://hdl.handle.net/2144/28339 | |
dc.description.abstract | Dissipation 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.extent | 085504 - ? | en_US |
dc.language | eng | |
dc.relation.ispartof | Phys Rev Lett | |
dc.rights | ©2003 American Physical Society | en_US |
dc.subject | Science & technology | en_US |
dc.subject | Physical sciences | en_US |
dc.subject | Physics | en_US |
dc.subject | Mechanical properties | en_US |
dc.subject | 2-level systems | en_US |
dc.subject | Silicon | en_US |
dc.subject | Dissipation | en_US |
dc.subject | Mesoscale and nanoscale physics | en_US |
dc.subject | General physics | en_US |
dc.title | Quantum friction of micromechanical resonators at low temperatures | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1103/PhysRevLett.90.085504 | |
pubs.elements-source | pubmed | en_US |
pubs.notes | Embargo: Not known | en_US |
pubs.organisational-group | Boston University | en_US |
pubs.organisational-group | Boston University, College of Arts & Sciences | en_US |
pubs.organisational-group | Boston University, College of Arts & Sciences, Department of Physics | en_US |
pubs.publication-status | Published | en_US |
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BU Open Access Articles [3866]
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CAS: Physics: Scholarly Papers [356]