I Decorrelation steps in Wolff algorithm

Thread starter IWantToLearn
Start date Jul 24, 2024
Tags

Simulation

Click For Summary

In Monte Carlo simulations using the Wolff algorithm for the 2D/3D Ising and classical 3D Heisenberg models, a common guideline is to set decorrelation steps to 10 times the lattice size (10*L) to ensure independent measurements of observables, especially near critical temperatures. This recommendation aims to minimize autocorrelation in the data collected during simulations. However, the effectiveness of this rule can vary based on specific system parameters and conditions. Researchers are encouraged to validate the decorrelation step by monitoring the convergence of observables. Ultimately, ensuring adequate decorrelation is crucial for obtaining reliable simulation results.

Jul 24, 2024

IWantToLearn

TL;DR: Decorrelation steps in Wolff algorithm

Hello all,

I am doing a monte Carlo simulation using Wolff algorithm for the 2D/3D Ising and classical 3D Heisenberg model, I have been told that the rule of thumb is to make your decorrelation steps = 10*L where L is the size of lattice, and this is would be sufficient enough to make independent measurements for observables even near the critical temperature

So what is recommendation really ?

Thread 'Why would an atmosphere without greenhouse gasses be colder than with them?'

Quick question that I haven't been able to find the answer to. Greenhouse gasses both warm and cool the atmosphere by slowing heat loss to space. But what would happen without GHGs? I read that the earth would be colder (though still relatively warm), but why? Without GHGs the atmosphere would still be a similar mass and still warmed by conduction from the surface, yet without a means to radiate that heat to space. Why wouldn't the atmosphere accumulate heat over time, becoming warmer? How...

View full post »