197 citations · 1.5k across the 50 of their papers we have counts for
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Efficient heat-bath sampling in Fock space
Adam Holmes, Hitesh J. Changlani, C. J. Umrigar
We introduce an algorithm for sampling many-body quantum states in Fock space. The algorithm efficiently samples states with probability approximately proportional to an arbitrary…
Schwinger boson mean field perspective on emergent spins in diluted Heisenberg antiferromagnets
Shivam Ghosh, Hitesh J. Changlani, Christopher L. Henley
Using an adaptation of Schwinger boson mean field theory (SBMFT) for nonuniform systems, we study the nature of low-energy spin excitations on the square and Bethe lattice at their…
Density-matrix based determination of low-energy model Hamiltonians from ab initio wavefunctions
Hitesh J. Changlani, Huihuo Zheng, Lucas K. Wagner
We propose a way of obtaining effective low energy Hubbard-like model Hamiltonians from ab initio Quantum Monte Carlo calculations for molecular and extended systems. The Hamiltoni…
Phase diagram of the Parafermionic Chain with Chiral Interactions
Ye Zhuang, Hitesh J. Changlani, Norm M. Tubman +1
Parafermions are exotic quasiparticles with non-Abelian fractional statistics that can be realized and stabilized in 1-dimensional models that are generalizations of the Kitaev p-w…
Determination of Tomonaga-Luttinger parameters for a two-component liquid
Olabode M. Sule, Hitesh J. Changlani, Isao Maruyama +1
We provide evidence for the mapping of critical spin-1 chains, in particular the SU(3) symmetric bilinear-biquadratic model with additional interactions, to free boson theories usi…