99 citations · 183 across the 10 of their papers we have counts for
10 papers
Universality and Critical Exponents of the Fermion Sign Problem
Rubem Mondaini, Sabyasachi Tarat, Richard T. Scalettar
Initial characterizations of the fermion sign problem focused on its evolution with spatial lattice size and inverse temperature , emphasizing the implications of the expone…
Quantum Critical Points and the Sign Problem
Rubem Mondaini, Sabyasachi Tarat, Richard T. Scalettar
The "sign problem" (SP) is the fundamental limitation to simulations of strongly correlated materials in condensed matter physics, solving quantum chromodynamics at finite baryon d…
Deconvolving the components of the sign problem
S. Tarat, Bo Xiao, R. Mondaini +1
Auxiliary field Quantum Monte Carlo simulations of interacting fermions require sampling over a Hubbard-Stratonovich field introduced to decouple the interactions. The weight f…
Magnetic order and transport in a spin-fermion model on a superlattice
Sabyasachi Tarat, Jian Li, Richard T. Scalettar +1
We consider a spin-fermion model consisting of free electrons coupled to classical spins, where the latter are embedded in a quasi one-dimensional superlattice structure consisting…
Reduction of electron repulsion and enhancement of in small diffusive superconducting grains
Sabyasachi Tarat, Yuval Oreg, Yoseph Imry
The superconducting properties of small metallic grains has been a topic of active research for half a century now. Early experiments demonstrated a remarkable rise in the critical…
Tunneling Spectroscopy Across the Superconductor-Insulator Thermal Transition
Sabyasachi Tarat, Pinaki Majumdar
Advances in scanning tunneling spectroscopy reveal the presence of superconducting nanoregions well past the bulk thermal transition in strongly disordered superconductors. We use…