The Strength of First and Second Order Phase Transitions from Partition Function Zeroes

W. Janke, Ralph Kenna

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We present a numerical technique employing the density of partition function zeroes (i) to distinguish between phase transitions of first and higher order, (ii) to examine the crossover between such phase transitions and (iii) to measure the strength of first and second order phase transitions in the form of latent heat and critical exponents. These techniques are demonstrated in applications to a number of models for which zeroes are available.
Original languageEnglish
Pages (from-to)1211-1227
JournalJournal of Statistical Physics
Issue number5-6
Publication statusPublished - Mar 2001


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  • density of partition function zeroes
  • phase transitions
  • finite size scaling
  • latent heat
  • critical exponents

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