Nuclear friction and quantum mechanical diffusion
(2005) In Physical Review C (Nuclear Physics) 71(6).- Abstract
- We study dissipative properties of the motion of a slow nuclear collective variable weakly coupled to a complex quantum environment formed by the fast nucleonic degrees of freedom. The fast quantum mechanical subsystem is treated within the random matrix approach, where the complexity of the nucleonic degrees of freedom's motion can be changed by a parameter from regular to fully chaotic. Classical dynamics is assumed for the slow variable, and the equation of motion is determined from conservation of the total energy of the nuclear many-body system. We show that the macroscopic equation of motion for the collective variable is subject to a memory-dependent friction force, with a retardation defined by the chaoticity of the fast nucleonic... (More)
- We study dissipative properties of the motion of a slow nuclear collective variable weakly coupled to a complex quantum environment formed by the fast nucleonic degrees of freedom. The fast quantum mechanical subsystem is treated within the random matrix approach, where the complexity of the nucleonic degrees of freedom's motion can be changed by a parameter from regular to fully chaotic. Classical dynamics is assumed for the slow variable, and the equation of motion is determined from conservation of the total energy of the nuclear many-body system. We show that the macroscopic equation of motion for the collective variable is subject to a memory-dependent friction force, with a retardation defined by the chaoticity of the fast nucleonic environment. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/233313
- author
- Radionov, Sergey LU and Åberg, Sven LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C (Nuclear Physics)
- volume
- 71
- issue
- 6
- article number
- 817
- publisher
- American Physical Society
- external identifiers
-
- wos:000230275800013
- scopus:27144448148
- ISSN
- 0556-2813
- DOI
- 10.1103/PhysRevC.71.064304
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
- id
- 415c121d-f078-46e2-8127-3de07bfae3ae (old id 233313)
- date added to LUP
- 2016-04-01 16:40:19
- date last changed
- 2022-04-22 23:39:43
@article{415c121d-f078-46e2-8127-3de07bfae3ae,
abstract = {{We study dissipative properties of the motion of a slow nuclear collective variable weakly coupled to a complex quantum environment formed by the fast nucleonic degrees of freedom. The fast quantum mechanical subsystem is treated within the random matrix approach, where the complexity of the nucleonic degrees of freedom's motion can be changed by a parameter from regular to fully chaotic. Classical dynamics is assumed for the slow variable, and the equation of motion is determined from conservation of the total energy of the nuclear many-body system. We show that the macroscopic equation of motion for the collective variable is subject to a memory-dependent friction force, with a retardation defined by the chaoticity of the fast nucleonic environment.}},
author = {{Radionov, Sergey and Åberg, Sven}},
issn = {{0556-2813}},
language = {{eng}},
number = {{6}},
publisher = {{American Physical Society}},
series = {{Physical Review C (Nuclear Physics)}},
title = {{Nuclear friction and quantum mechanical diffusion}},
url = {{http://dx.doi.org/10.1103/PhysRevC.71.064304}},
doi = {{10.1103/PhysRevC.71.064304}},
volume = {{71}},
year = {{2005}},
}