Adam Miranowicz

Detecting quantum non-breaking channels without entanglement

2021 · arXiv (Cornell University)

Quantum channels, which break entanglement, incompatibility, or nonlocality, are not useful for entanglement-based, one-sided device-independent, or device-independent quantum information processing, respectively. Here, we show that such breaking channels are related to certain temporal quantum correlations, …

Fault-tolerant multiqubit geometric entangling gates using photonic cat-state qubits

2021 · arXiv (Cornell University)

We propose a theoretical protocol to implement multiqubit geometric gates (i.e., the Mølmer-Sørensen gate) using photonic cat-state qubits. These cat-state qubits stored in high-$Q$ resonators are promising for hardware-efficient universal quantum computing. Specifically, in the …