3 papers
quant-ph2026
Exact gradient for general cost functions in variational quantum algorithms
Jesus Urbaneja, Le Bin Ho
We present a unitary-based gradient formulation for variational quantum algorithms (VQAs) that applies to general differentiable cost function defined by a parameterized quantum ci…
quant-ph2025
Statistical analysis of barren plateaus in variational quantum algorithms
Le Bin Ho, Jesus Urbaneja, Sahel Ashhab
We investigate the barren plateau (BP) phenomenon in variational quantum algorithms using a statistical approach. Using Gaussian function models, we identify three distinct types o…
quant-ph2024
Multi-target quantum compilation algorithm
Vu Tuan Hai, Nguyen Tan Viet, Jesus Urbaneja +3
Quantum compilation is the process of converting a target unitary operation into a trainable unitary represented by a quantum circuit. It has a wide range of applications, includin…