Coupled-channels approach for dissipative quantum dynamics in near-barrier collisions

A. Diaz-Torres; D. J. Hinde; M. Dasgupta; G. J. Milburn; J. A. Tostevin

doi:10.1063/1.3108859

Coupled-channels approach for dissipative quantum dynamics in near-barrier collisions

A. Diaz-Torres^*, D. J. Hinde, M. Dasgupta, G. J. Milburn, J. A. Tostevin

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

A novel quantum dynamical model based on the dissipative quantum dynamics of open quantum systems is presented. It allows the treatment of both deep-inelastic processes and quantum tunneling (fusion) within a fully quantum mechanical coupled-channels approach. Model calculations show the transition from pure state (coherent) to mixed state (decoherent and dissipative) dynamics during a near-barrier nuclear collision. Energy dissipation, due to irreversible decay of giant-dipole excitations of the interacting nuclei, results in hindrance of quantum tunneling.

Original language	English
Pages (from-to)	44-51
Number of pages	8
Journal	AIP Conference Proceedings
Volume	1098
DOIs	https://doi.org/10.1063/1.3108859
Publication status	Published - 2009
Event	International Conference on New Aspects of Heavy Ion Collisions near the Coulomb Barrier, FUSION08 - Chicago, IL, United States Duration: 22 Sept 2008 → 26 Sept 2008

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10.1063/1.3108859

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@article{ec7a470ea54e42508d44adb4143210d0,

title = "Coupled-channels approach for dissipative quantum dynamics in near-barrier collisions",

abstract = "A novel quantum dynamical model based on the dissipative quantum dynamics of open quantum systems is presented. It allows the treatment of both deep-inelastic processes and quantum tunneling (fusion) within a fully quantum mechanical coupled-channels approach. Model calculations show the transition from pure state (coherent) to mixed state (decoherent and dissipative) dynamics during a near-barrier nuclear collision. Energy dissipation, due to irreversible decay of giant-dipole excitations of the interacting nuclei, results in hindrance of quantum tunneling.",

keywords = "Coupled channels, Decoherence, Deep -inelastic collisions, Dissipation, Fusion, Lindblad equation, Open quantum system, Quantum tunneling",

author = "A. Diaz-Torres and Hinde, {D. J.} and M. Dasgupta and Milburn, {G. J.} and Tostevin, {J. A.}",

year = "2009",

doi = "10.1063/1.3108859",

language = "English",

volume = "1098",

pages = "44--51",

journal = "AIP Conference Proceedings",

issn = "0094-243X",

publisher = "American Institute of Physics",

note = "International Conference on New Aspects of Heavy Ion Collisions near the Coulomb Barrier, FUSION08 ; Conference date: 22-09-2008 Through 26-09-2008",

}

TY - JOUR

T1 - Coupled-channels approach for dissipative quantum dynamics in near-barrier collisions

AU - Diaz-Torres, A.

AU - Hinde, D. J.

AU - Dasgupta, M.

AU - Milburn, G. J.

AU - Tostevin, J. A.

PY - 2009

Y1 - 2009

N2 - A novel quantum dynamical model based on the dissipative quantum dynamics of open quantum systems is presented. It allows the treatment of both deep-inelastic processes and quantum tunneling (fusion) within a fully quantum mechanical coupled-channels approach. Model calculations show the transition from pure state (coherent) to mixed state (decoherent and dissipative) dynamics during a near-barrier nuclear collision. Energy dissipation, due to irreversible decay of giant-dipole excitations of the interacting nuclei, results in hindrance of quantum tunneling.

AB - A novel quantum dynamical model based on the dissipative quantum dynamics of open quantum systems is presented. It allows the treatment of both deep-inelastic processes and quantum tunneling (fusion) within a fully quantum mechanical coupled-channels approach. Model calculations show the transition from pure state (coherent) to mixed state (decoherent and dissipative) dynamics during a near-barrier nuclear collision. Energy dissipation, due to irreversible decay of giant-dipole excitations of the interacting nuclei, results in hindrance of quantum tunneling.

KW - Coupled channels

KW - Decoherence

KW - Deep -inelastic collisions

KW - Dissipation

KW - Fusion

KW - Lindblad equation

KW - Open quantum system

KW - Quantum tunneling

UR - http://www.scopus.com/inward/record.url?scp=65349117604&partnerID=8YFLogxK

U2 - 10.1063/1.3108859

DO - 10.1063/1.3108859

M3 - Conference article

AN - SCOPUS:65349117604

SN - 0094-243X

VL - 1098

SP - 44

EP - 51

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

T2 - International Conference on New Aspects of Heavy Ion Collisions near the Coulomb Barrier, FUSION08

Y2 - 22 September 2008 through 26 September 2008

ER -

Coupled-channels approach for dissipative quantum dynamics in near-barrier collisions

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