Prineha Narang

Demonstration of quantum advantage by a joint detection receiver for optical communications using quantum belief propagation on a trapped-ion device

2021 · arXiv (Cornell University)

Demonstrations of quantum advantage have largely focused on computational speedups and on quantum simulation of many-body physics, limited by fidelity and capability of current devices. Discriminating laser-pulse-modulated classical-communication codewords at the minimum allowable probability of …

Heterogeneous Multipartite Entanglement Purification for Size-Constrained Quantum Devices

2020 · arXiv (Cornell University)

The entanglement resource required for quantum information processing comes in a variety of forms, from Bell states to multipartite GHZ states or cluster states. Purifying these resources after their imperfect generation is an indispensable step …

Tunable quantum logic gate on photonic qubits with a ladder emitter

2022 · Applied Physics Letters

We describe how a ladder emitter can implement a tunable quantum logic gate on photonic qubits encoded in the frequency basis. The ground-to-first excited state of the ladder emitter interacts with the control photon, and …