collaborators
Showing quant-phShow all

6 papers · 1 filter

quant-ph2026

Explicit Block Encoding of Difference-of-Gaussian Operators on a Periodic Grid

Jishnu Mahmud, John Winship, Tom Lash +2

The Difference-of-Gaussian (DoG) is a widely used operator across applications, including image processing (feature and edge detection), quantum machine learning, and finite-differ…

quant-ph2025

Partitioned-Constraint QAOA (PC-QAOA): Structural State Preparation and Penalty Enforcement for Quantum Optimization

Anthony Wilkie, Alexander DeLise, Andrew Del Real +2

Constrained combinatorial optimization remains challenging for quantum algorithms because feasibility must be explicitly enforced, typically through penalty terms or problem-specif…

quant-ph2025

A mixed-integer program for circuit execution time minimization with precedence constraints

Mostafa Atallah, James Ostrowski, Rebekah Herrman

We present a mixed-integer programming (MIP) model for scheduling quantum circuits to minimize execution time. Our approach maximizes parallelism by allowing non-overlapping gates…

quant-ph2024

An angle rounding parameter initialization technique for ma-QAOA

Anthony Wilkie, James Ostrowski, Rebekah Herrman

The multi-angle quantum approximate optimization algorithm (ma-QAOA) is a recently introduced algorithm that gives at least the same approximation ratio as the quantum approximate…

quant-ph2024

Quantum approximate optimization algorithm with random and subgraph phase operators

Anthony Wilkie, Igor Gaidai, James Ostrowski +1

The quantum approximate optimization algorithm (QAOA) is a promising quantum algorithm that can be used to approximately solve combinatorial optimization problems. The usual QAOA a…

quant-ph2023

Combinatorial optimization with quantum imaginary time evolution

Nora M. Bauer, Rizwanul Alam, James Ostrowski +1

We use Quantum Imaginary Time Evolution (QITE) to solve polynomial unconstrained binary optimization (PUBO) problems. We show that a linear Ansatz yields good results for a wide ra…