Non-Markovian collision integral in Fermi systems

VA Plujko; SN Ezhov; OM Gorbachenko; MO Kavatsyuk

doi:10.1088/0953-8984/14/41/304

Non-Markovian collision integral in Fermi systems

VA Plujko^*, SN Ezhov, OM Gorbachenko, MO Kavatsyuk

^*Corresponding author for this work

Nuclear Energy

Research output: Contribution to journal › Article › Academic › peer-review

10 Citations (Scopus)

Abstract

The non-Markovian collision integral is obtained on the base of the Kadanoff-Baym equations for Green functions, in a form with allowance for small retardation effects. The collisional relaxation times and damping width of the giant isovector dipole resonances in nuclear matter are calculated. For an infinite Fermi liquid the dependence of the relaxation times on the collective vibration frequency and the temperature corresponds to the Landau prescription.

Original language	English
Article number	PII S0953-8984(02)32193-3
Pages (from-to)	9473-9483
Number of pages	11
Journal	Journal of Physics-Condensed Matter
Volume	14
Issue number	41
DOIs	https://doi.org/10.1088/0953-8984/14/41/304
Publication status	Published - 21-Oct-2002

Keywords

NUCLEAR COLLECTIVE EXCITATIONS
GIANT-RESONANCES
RELAXATION-TIMES
VIBRATIONS
MOTION
WIDTH

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AU - Gorbachenko, OM

AU - Kavatsyuk, MO

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Y1 - 2002/10/21

N2 - The non-Markovian collision integral is obtained on the base of the Kadanoff-Baym equations for Green functions, in a form with allowance for small retardation effects. The collisional relaxation times and damping width of the giant isovector dipole resonances in nuclear matter are calculated. For an infinite Fermi liquid the dependence of the relaxation times on the collective vibration frequency and the temperature corresponds to the Landau prescription.

AB - The non-Markovian collision integral is obtained on the base of the Kadanoff-Baym equations for Green functions, in a form with allowance for small retardation effects. The collisional relaxation times and damping width of the giant isovector dipole resonances in nuclear matter are calculated. For an infinite Fermi liquid the dependence of the relaxation times on the collective vibration frequency and the temperature corresponds to the Landau prescription.

KW - NUCLEAR COLLECTIVE EXCITATIONS

KW - GIANT-RESONANCES

KW - RELAXATION-TIMES

KW - VIBRATIONS

KW - MOTION

KW - WIDTH

U2 - 10.1088/0953-8984/14/41/304

DO - 10.1088/0953-8984/14/41/304

M3 - Article

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JF - Journal of Physics-Condensed Matter

IS - 41

M1 - PII S0953-8984(02)32193-3

ER -

Non-Markovian collision integral in Fermi systems

Abstract

Keywords

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