Timescales of Quantum Equilibration, Dissipation and Fluctuation in Nuclear Collisions
dc.contributor.author | Simenel, Cedric | |
dc.contributor.author | Godbey, K | |
dc.contributor.author | Umar, A S | |
dc.date.accessioned | 2021-03-18T23:20:07Z | |
dc.date.available | 2021-03-18T23:20:07Z | |
dc.date.issued | 2020 | |
dc.date.updated | 2020-11-22T07:18:53Z | |
dc.description.abstract | Understanding the dynamics of equilibration processes in quantum systems as well as their interplay with dissipation and fluctuation is a major challenge in quantum many-body theory. The timescales of such processes are investigated in collisions of atomic nuclei using fully microscopic approaches. Results from time-dependent Hartree-Fock and time-dependent random-phase approximation calculations are compared for 13 systems over a broad range of energies. The timescale for full mass equilibration (∼2x× 10−20s) is found to be much larger than timescales for neutron-to-proton equilibration, kinetic energy, and angular momentum dissipations which are on the order of 10−21s. Fluctuations of mass numbers in the fragments and correlations between their neutron and proton numbers build up within only a few 10−21s. This indicates that dissipation is basically not impacted by mass equilibration, but is mostly driven by the exchange of nucleons between the fragments. | en_AU |
dc.format.mimetype | application/pdf | en_AU |
dc.identifier.issn | 0031-9007 | en_AU |
dc.identifier.uri | http://hdl.handle.net/1885/227558 | |
dc.language.iso | en_AU | en_AU |
dc.provenance | https://v2.sherpa.ac.uk/id/publication/13640..."author can archive publisher's version/PDF" from Sherpa/Romeo site as at 19/03/2021 | en_AU |
dc.publisher | American Physical Society | en_AU |
dc.rights | © 2020 American Physical Society | en_AU |
dc.rights.license | Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license | en_AU |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_AU |
dc.source | Physical Review Letters | en_AU |
dc.source.uri | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.212504 | en_AU |
dc.title | Timescales of Quantum Equilibration, Dissipation and Fluctuation in Nuclear Collisions | en_AU |
dc.type | Journal article | en_AU |
dcterms.accessRights | Open Access | en_AU |
local.bibliographicCitation.issue | 21 | en_AU |
local.contributor.affiliation | Simenel, Cedric, College of Science, ANU | en_AU |
local.contributor.affiliation | Godbey, K, Vanderbilt University | en_AU |
local.contributor.affiliation | Umar, A S, Vanderbilt University | en_AU |
local.contributor.authoremail | u4787848@anu.edu.au | en_AU |
local.contributor.authoruid | Simenel, Cedric, u4787848 | en_AU |
local.description.notes | Imported from ARIES | en_AU |
local.identifier.absfor | 020202 - Nuclear Physics | en_AU |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | en_AU |
local.identifier.ariespublication | a383154xPUB13549 | en_AU |
local.identifier.citationvolume | 124 | en_AU |
local.identifier.doi | 10.1103/PhysRevLett.124.212504 | en_AU |
local.identifier.uidSubmittedBy | a383154 | en_AU |
local.publisher.url | https://journals.aps.org | en_AU |
local.type.status | Published Version | en_AU |
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