George Siopsis

Experimental Study of Hong–Ou–Mandel Interference Using Independent Phase Randomized Weak Coherent States

2018 · Journal of Lightwave Technology

Hong-Ou-Mandel interferometers are valuable tools in many Quantum Information and Quantum Optics applications that require photon indistinguishability. The theoretical limit for the Hong-Ou-Mandel visibility is 0.5 for indistinguishable weak coherent photon states, but several device …

Solving MaxCut with Quantum Imaginary Time Evolution

2022 · arXiv (Cornell University)

We introduce a method to solve the MaxCut problem efficiently based on quantum imaginary time evolution (QITE). We employ a linear Ansatz for unitary updates and an initial state involving no entanglement, as well as …

Graph decomposition techniques for solving combinatorial optimization problems with variational quantum algorithms

2023 · arXiv (Cornell University)

The quantum approximate optimization algorithm (QAOA) has the potential to approximately solve complex combinatorial optimization problems in polynomial time. However, current noisy quantum devices cannot solve large problems due to hardware constraints. In this work, …