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Reweight-annealing method for calculating the value of partition function via quantum Monte Carlo
- Publication Year :
- 2024
-
Abstract
- Efficient and accurate algorithm for partition function, free energy and thermal entropy calculations is of great significance in statistical physics and quantum many-body physics. Here we present an unbiased but low-technical-barrier algorithm within the quantum Monte Carlo framework, which has exceptionally high accuracy and no systemic error. Compared with the conventional specific heat integral method and Wang-Landau sampling algorithm, our method can obtain a much more accurate result of the sub-leading coefficient of the entropy. This method can be widely used in both classical and quantum Monte Carlo simulations and is easy to be parallelized on computer.<br />Comment: 10 pages, 7 figures
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2403.08642
- Document Type :
- Working Paper