168 citations · 2k across the 70 of their papers we have counts for
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physics.comp-ph2023★ 5 cited
A quantum Monte Carlo algorithm for arbitrary spin-1/2 Hamiltonians
Lev Barash, Arman Babakhani, Itay Hen
We present a universal parameter-free quantum Monte Carlo (QMC) algorithm designed to simulate arbitrary spin- Hamiltonians. To ensure the convergence of the Markov chain to e…
physics.comp-ph2021★ 1 cited
Calculating elements of matrix functions using divided differences
Lev Barash, Stefan Güttel, Itay Hen
We introduce a method for calculating individual elements of matrix functions. Our technique makes use of a novel series expansion for the action of matrix functions on basis vecto…
physics.comp-ph2019★ 14 cited
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…