Arxiv – Controlled-NOT gate operating with single photons (10 pages) Technology Review – Cambridge physicists have built a quantum logic gate that combines a quantum dot that fires photons with a ...

Making two photons "talk" to each other to realise the all-important controlled-NOT gate is much harder, but Dr O'Brien and his colleagues at the University of Queensland demonstrated this back in ...

More information: Hsuan-Hao Lu et al, Building a controlled-NOT gate between polarization and frequency, Optica Quantum (2024 ...

The team developed 'the world's smallest optical controlled-NOT gate -- the building block of a quantum computer.' As said the lead researcher, 'This is a crucial step towards a future optical ...

In 2003 Jeremy O’Brien at the University of Bristol and colleagues in Australia built the first controlled NOT (CNOT) quantum logic gate for single photons. A CNOT gate has two inputs – “target” and ...

controlled-phase gates, and controlled-not gates. The review focuses on two main types of silicon spin qubits: gate-defined quantum dots and donor-based quantum dots. Gate-defined quantum dots are ...

Dr Jeremy O’Brien, his PhD student Alberto Politi, and their colleagues at Bristol University have demonstrated the world’s smallest optical controlled-NOT gate – the building block of a ...