33 citations · 142 across the 13 of their papers we have counts for
5 papers · 1 filter
An approach for calculating astrophysical opacities on quantum computers
Shivesh Pathak, Alina Kononov, Andrew D. Baczewski
We propose a quantum algorithmic protocol for calculating astrophysical opacities. Our implementation uses first- and second-quantized representations of interacting electronic and…
Quantum simulation of lattice gauge theories coupled to fermionic matter via anyonic regularization
Mason L. Rhodes, Shivesh Pathak, Riley W. Chien
The optimal regularization of infinite-dimensional gauge-field degrees of freedom is a central open problem in the simulation of lattice gauge theories on quantum computers. Here,…
Exponential improvements in the simulation of lattice gauge theories using near-optimal techniques
Mason L. Rhodes, Michael Kreshchuk, Shivesh Pathak
We report a first-of-its-kind analysis on post-Trotter simulation of U(1), SU(2) and SU(3) lattice gauge theories including fermions in arbitrary spatial dimension. We provide expl…
Requirements for building effective Hamiltonians using quantum-enhanced density matrix downfolding
Shivesh Pathak, Antonio E. Russo, Stefan Seritan +4
Density matrix downfolding (DMD) is a technique for regressing low-energy effective Hamiltonians from quantum many-body Hamiltonians. One limiting factor in the accuracy of classic…
Quantifying -gate-count improvements for ground-state-energy estimation with near-optimal state preparation
Shivesh Pathak, Antonio Russo, Stefan Seritan +1
We study the question of when investing additional quantum resources in preparing a ground state will improve the aggregate runtime associated with estimating its energy. We analyz…