3 papers
quant-ph2025
Quantum Seniority-based Subspace Expansion: Linear Combinations of Short-Circuit Unitary Transformations for the Electronic Structure Problem
Smik Patel, Praveen Jayakumar, Rick Huang +2
Quantum SENiority-based Subspace Expansion (Q-SENSE) is a hybrid quantum-classical algorithm that interpolates between the Variational Quantum Eigensolver (VQE) and Configuration I…
quant-ph2025
Planted Solutions in Quantum Chemistry: Generating Non-Trivial Hamiltonians with Known Ground States
Linjun Wang, Joshua T. Cantin, Smik Patel +3
Generating large, non-trivial quantum chemistry test problems with known ground-state solutions remains a core challenge for benchmarking electronic structure methods. Inspired by…
quant-ph2025
Quantum Gambling: Best-Arm Strategies for Generator Selection in Adaptive Variational Algorithms
Rick Huang, Artur F. Izmaylov
Adaptive variational algorithms suffer from prohibitively high measurement costs during the generator selection step, since energy gradients must be estimated for a large operator…