Eugene Dumitrescu

Direct characterization of quantum dynamics with noisy ancilla

2015 · Physical Review A

We present methods for the direct characterization of quantum dynamics in which both the principal and ancilla systems undergo noisy processes. Using a concatenated error detection code, we discriminate between located and unlocated errors on …

Quantifying the Impact of Precision Errors on Quantum Approximate Optimization Algorithms

2021 · arXiv (Cornell University)

The quantum approximate optimization algorithm (QAOA) is a hybrid quantum-classical algorithm that seeks to achieve approximate solutions to optimization problems by iteratively alternating between intervals of controlled quantum evolution. Here, we examine the effect of …