EurekAlert July 16, 2019 A team of researchers in the US (Purdue University, Oak Ridge National Laboratory) implemented qudit gate with a set of standard off-the-shelf equipment used daily in the optical communication industry. Qudits exist in multiple states, such as 0 and 1 and 2. More states mean that more data can be encoded and processed. They achieved more entanglement with fewer photons by encoding one qudit in the time domain and the other in the frequency domain of each of the two photons. They built a gate using the two qudits encoded in each photon, for a total […]
Tag Archives: Quantum gate
Scientists ‘teleport’ a quantum gate
Science Daily September 5, 2018 Modularity is used in constructing a large-scale quantum processor because of the errors and noise that are inherent in real-world quantum systems. An essential tool for universal quantum computation is the teleportation of an entangling quantum gate. Researchers at Yale University demonstrated the teleportation of a controlled-NOT (CNOT) gate, took a crucial step towards implementing robust, error-correctable modules by enacting the gate between two logical qubits, encoding quantum information redundantly. By using such an error-correctable encoding, their teleported gate achieves a process fidelity of 79 per cent. Teleported gates have implications for fault-tolerant quantum computation, […]