768 citations · 2.6k across the 25 of their papers we have counts for
26 papers
Optimal testing of fermionic and bosonic Gaussian states
Vishnu Iyer, Bryan O'Gorman, Ojas Parekh +2
We study the problem of property testing quantum states: given a pure state that either (A) belongs to some class of pure states, or (B) is -far in tra…
Unbiasing Fermionic Auxiliary-Field Quantum Monte Carlo with Matrix Product State Trial Wavefunctions
Tong Jiang, Bryan O'Gorman, Ankit Mahajan +1
In this work, we report, for the first time, an implementation of fermionic auxiliary-field quantum Monte Carlo (AFQMC) using matrix product state (MPS) trial wavefunctions, dubbed…
Self-consistent Quantum Iteratively Sparsified Hamiltonian method (SQuISH): A new algorithm for efficient Hamiltonian simulation and compression
Diana B. Chamaki, Stuart Hadfield, Katherine Klymko +2
It is crucial to reduce the resources required to run quantum algorithms and simulate physical systems on quantum computers due to coherence time limitations. With regards to Hamil…
Fermionic tomography and learning
Bryan O'Gorman
Shadow tomography via classical shadows is a state-of-the-art approach for estimating properties of a quantum state. We present a simplified, combinatorial analysis of a recently p…
Response to "Exponential challenges in unbiasing quantum Monte Carlo algorithms with quantum computers"
Joonho Lee, David R. Reichman, Ryan Babbush +4
A recent preprint by Mazzola and Carleo numerically investigates exponential challenges that can arise for the QC-QMC algorithm introduced in our work, "Unbiasing fermionic quantum…
The Parameterized Complexity of Quantum Verification
Srinivasan Arunachalam, Sergey Bravyi, Chinmay Nirkhe +1
We initiate the study of parameterized complexity of problems in terms of the number of non-Clifford gates in the problem description. We show that for the problem o…