Dresden 2020 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 36: Focus Session: Integrated Quantum Photonics II

HL 36.5: Invited Talk

Tuesday, March 17, 2020, 15:15–15:45, POT 51

Classical computing with quantum states of light — •Stefanie Barz — University of Stuttgart, Germany

Secure delegated computing is a key task for both classical and quantum networks. There exist both classical and quantum protocols for performing secure (quantum) computations in networks.

In this talk, I will show how to use quantum states of light for computing in such networks.

Here, each party in the network has limited computational resources; quantum states increase the computational power of the individual parties. As particular examples, I will show how single qubits and XOR gates allow for universal classical computation. Further, I will demonstrate how quantum resources and linear classical processing enable non-linear computation.

Finally, I will show proof-of-concept implementations using photonic qubits. Thus, this work highlights how minimal quantum and classical resources can be combined and exploited for classical computing.