14 citations · 32 across the 3 of their papers we have counts for
4 papers
Stoquastic simulations of non-stoquastic superconducting flux circuits
Harel Kol-Namer, Tom Halverson, Lalit Gupta +2
There is a tremendous interest in fabricating superconducting flux circuits that are nonstoquastic -- i.e., have positive off-diagonal matrix elements -- in their qubit representat…
Calculating the divided differences of the exponential function by addition and removal of inputs
Lalit Gupta, Lev Barash, Itay Hen
We introduce a method for calculating the divided differences of the exponential function by means of addition and removal of items from the input list to the function. Our techniq…
Elucidating the interplay between non-stoquasticity and the sign problem
Lalit Gupta, Itay Hen
The sign problem is a key challenge in computational physics, encapsulating our inability to properly understand many important quantum many-body phenomena in physics, chemistry an…
Permutation Matrix Representation Quantum Monte Carlo
Lalit Gupta, Tameem Albash, Itay Hen
We present a quantum Monte Carlo algorithm for the simulation of general quantum and classical many-body models within a single unifying framework. The algorithm builds on a power…