Published April 2000 | Version v1
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Two time scales and FDT violation in a finite dimensional model for structural glasses

Creators

  • 1. Abdus Salam International Centre for Theoretical Physics, Trieste (Italy).
  • 2. E-mail: stariolo at if.ufrgs.br (Brazil)
  • 3. Instituto de Fisica, Universidade Federal do Rio Grande do Sul, Porto Alegre RS (Brazil).

Description

We study the breakdown of fluctuation-dissipation relations between time dependent density-density correlations and associated responses following a quench in chemical potential in the Frustrated Ising Lattice Gas. The corresponding slow dynamics is characterized by two well separated time scales which are characterized by a constant value of the fluctuation-dissipation ratio. This result is particularly relevant taking into account that activated processes dominate the long time dynamics of the system. (author)

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Additional details

Publishing Information

Imprint Pagination
9 p.
Report number
IC--2000/39

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
31022363
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
AGING; DYNAMICS; HAMILTONIANS; ISING MODEL; MONTE CARLO METHOD; SPIN GLASS STATE; TEMPERATURE DEPENDENCE
Descriptors DEC
CALCULATION METHODS; CRYSTAL MODELS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MECHANICS; QUANTUM OPERATORS

Optional Information

Notes
16 refs, 3 figs