All Questions
4
questions
7
votes
1
answer
217
views
What makes lattice QCD computationally tractable?
I don't know anything about lattice QCD. Therefore, at first glance it seems to me that lattice QCD should be computationally intractable for all practical purposes.
Let's assume that we only care ...
- 6,611
4
votes
1
answer
266
views
Real time lattice simulation
A typical simulation of lattice quantum chromodynamics uses imaginary time, so the weight function of the path integral is positive definite $e^{-S_E}$.
In the case of metropolis-hastings, the ...
- 343
14
votes
2
answers
2k
views
Why Does Lattice QCD Use Heavier Than Physical Masses For Calculations?
It is common place (e.g. here), for Lattice QCD calculations to be computed using reference masses (such as the pion mass) which are greater that the physical values of those quantities.
Sometimes, ...
- 3,957
1
vote
1
answer
269
views
Lattice QFT: Non-homogenous lattice spacing
I am interested why we fix the lattice spacing, $a$ to be homogenous in all dimensions. After a Wick rotation, $a=i \epsilon$ where $\epsilon=t_{i+1} - t_{i}$ and with euclidean time given by $\tau = ...
