activity
20222026
most citedSimulating neutrino oscillations on a superconducting qutrit

15 citations · 23 across the 16 of their papers we have counts for

collaborators

17 papers

quant-ph2026

The Expressive Power of Constrained QAOA: What You Might Have MISsed

Boris Tsvelikhovskiy, Bao Bach, Ilya Safro

Feasibility-preserving mixer Hamiltonians offer an attractive alternative to penalty encodings for constrained quantum optimization, yet how enforcing constraints alters the state…

quant-ph2026

Efficient Estimation of Reduced QAOA Expressibility on Acyclic Graphs

Bao Bach, Boris Tsvelikhovskiy, Jose Falla +1

Classically equivalent formulations of an optimization problem need not lead to equivalent quantum algorithms. For MaxCut, fixing the value of a single vertex removes a simple glob…

quant-ph2026

Warm-Starting MaxCut Relaxation via Low-Depth Quantum Approximate Optimization Algorithm

Bao G. Bach, Ilya Safro, Filip B. Maciejewski

Quantum optimization has attracted growing interest as quantum hardware continues to improve, yet state-of-the-art classical solvers remain a formidable benchmark for practical uti…

quant-ph2026

Quantum Hypergraph Partitioning

Cameron Ibrahim, Bao G. Bach, Jad Salem +4

Quantum optimization algorithms are inherently probabilistic, yet they are most often used to search for a single high-quality solution. In this paper, we instead study hypergraph…

quant-ph2026

Scaling Qubit Mapping and Routing With Position Graph Abstraction and Memoization

Brent Russon, Bao Bach, Ed Younis +1

Scalable qubit mapping and routing remain major bottlenecks in quantum compilation, especially for Trapped-Ion Quantum Charge-Coupled device (TI-QCCD) architectures, where qubit in…

quant-ph2026

Learning Cut Distributions with Quantum Optimization

Bao Bach, Cameron Ibrahim, Reuben Tate +3

Many combinatorial optimization problems admit a maximin fairness variant, where the aim is to find a distribution over possible solutions which maximizes an expected worst-case ou…

quant-ph2026

Reductions of QAOA Induced by Classical Symmetries: Theoretical Insights and Practical Implications

Boris Tsvelikhovskiy, Bao Bach, Jose Falla +1

The performance of the Quantum Approximate Optimization Algorithm (QAOA) is closely tied to the structure of the dynamical Lie algebra (DLA) generated by its Hamiltonians, which de…

quant-ph2025

Solving Large-Scale QUBO with Transferred Parameters from Multilevel QAOA of low depth

Bao G Bach, Filip B. Maciejewski, Ilya Safro

The Quantum Approximate Optimization Algorithm (QAOA) is a promising quantum approach for tackling combinatorial optimization problems. However, hardware constraints such as limite…

quant-ph2025

Provably faster randomized and quantum algorithms for -means clustering via uniform sampling

Tyler Chen, Archan Ray, Akshay Seshadri +6

The -means algorithm (Lloyd's algorithm) is a widely used method for clustering unlabeled data. A key bottleneck of the -means algorithm is that each iteration requires time…

quant-ph2025

Cross-Problem Parameter Transfer in Quantum Approximate Optimization Algorithm: A Machine Learning Approach

Kien X. Nguyen, Bao Bach, Ilya Safro

Quantum Approximate Optimization Algorithm (QAOA) is one of the most promising candidates to achieve the quantum advantage in solving combinatorial optimization problems. The proce…

quant-ph2025

Efficient Compilation for Shuttling Trapped-Ion Machines via the Position Graph Architectural Abstraction

Bao Bach, Ilya Safro, Ed Younis

With the growth of quantum platforms for gate-based quantum computation, compilation holds a crucial role in deciding the success of the implementation. While there has been rich r…

quant-ph2024

QAdaPrune: Adaptive Parameter Pruning For Training Variational Quantum Circuits

Ankit Kulshrestha, Xiaoyuan Liu, Hayato Ushijima-Mwesigwa +2

In the present noisy intermediate scale quantum computing era, there is a critical need to devise methods for the efficient implementation of gate-based variational quantum circuit…

quant-ph2024

A Multilevel Approach For Solving Large-Scale QUBO Problems With Noisy Hybrid Quantum Approximate Optimization

Filip B. Maciejewski, Bao Gia Bach, Maxime Dupont +5

Quantum approximate optimization is one of the promising candidates for useful quantum computation, particularly in the context of finding approximate solutions to Quadratic Uncons…

quant-ph2024★ 6 cited

MLQAOA: Graph Learning Accelerated Hybrid Quantum-Classical Multilevel QAOA

Bao Bach, Jose Falla, Ilya Safro

Learning the problem structure at multiple levels of coarseness to inform the decomposition-based hybrid quantum-classical combinatorial optimization solvers is a promising approac…

quant-ph2022★ 15 cited

Simulating neutrino oscillations on a superconducting qutrit

Ha C. Nguyen, Bao G. Bach, Tien D. Nguyen +3

Precise measurements of parameters in the PMNS framework might lead to new physics beyond the Standard Model. However, they are incredibly challenging to determine in neutrino osci…

quant-ph2022★ 1 cited

Quantum Neural Architecture Search with Quantum Circuits Metric and Bayesian Optimization

Trong Duong, Sang T. Truong, Minh Tam +3

Quantum neural networks are promising for a wide range of applications in the Noisy Intermediate-Scale Quantum era. As such, there is an increasing demand for automatic quantum neu…

cs.AR2022★ 1 cited

An FPGA-based Solution for Convolution Operation Acceleration

Trung Dinh Pham, Bao Gia Bach, Lam Trinh Luu +5

Hardware-based acceleration is an extensive attempt to facilitate many computationally-intensive mathematics operations. This paper proposes an FPGA-based architecture to accelerat…