329 citations · 3.5k across the 125 of their papers we have counts for
6 papers · 1 filter
From Spin Ladders to the 2-d O(3) Model at Non-Zero Density
S. Chandrasekharan, B. Scarlet, U. -J. Wiese
The numerical simulation of various field theories at non-zero chemical potential suffers from severe complex action problems. In particular, QCD at non-zero quark density can pres…
Superconductivity and Chiral Symmetry Breaking with Fermion Clusters
Shailesh Chandrasekharan
Cluster variables have recently revolutionized numerical work in certain models involving fermionic variables. This novel representation of fermionic partition functions is continu…
Physical Observables from Lattice QCD at Fixed Topology
R. Brower, S. Chandrasekharan, J. W. Negele +1
Because present Monte Carol algorithms for lattice QCD may become trapped in a given topological charge sector when one approaches the continuum limit, it is important to understan…
Novel Quantum Monte Carlo Algorithms for Fermions
Shailesh Chandrasekharan
Recent research shows that the partition function for a class of models involving fermions can be written as a statistical mechanics of clusters with positive definite weights. Thi…
Kosterlitz-Thouless Universality in a Fermionic System
Shailesh Chandrasekharan, James C. Osborn
A new extension of the attractive Hubbard model is constructed to study the critical behavior near a finite temperature superconducting phase transition in two dimensions using the…
Solution of the Complex Action Problem in the Potts Model for Dense QCD
M. Alford, S. Chandrasekharan, J. Cox +1
Monte Carlo simulations of lattice QCD at non-zero baryon chemical potential suffer from the notorious complex action problem. We consider QCD with static quarks coupled to a l…