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Hannover 2013 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 23: Dissertation Prize Symposium

A 23.1: Hauptvortrag

Mittwoch, 20. März 2013, 11:00–11:30, E 415

Photonic Quantum Computing — •Stefanie Barz — Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria

Quantum physics has revolutionized our understanding of information processing and enables computational speed-ups that are unattainable using classical computers. In this talk I will present a series of experiments in the field of photonic quantum computing.

The first experiment is in the field of photonic state engineering and realizes the generation of heralded polarization-entangled photon pairs. It overcomes the limited applicability of photon-based schemes for quantum information processing tasks, which arises from the probabilistic nature of photon generation.

The second experiment uses polarization-entangled photonic qubits to implement “blind quantum computing,” a new concept in quantum computing. Blind quantum computing enables a nearly-classical client to access the resources of a more computationally-powerful quantum server without divulging the content of the requested computation.

Finally, the concept of blind quantum computing is applied to the field of verification. A new method is developed and experimentally demonstrated, which verifies the entangling capabilities of a quantum computer based on a blind Bell test.

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DPG-Physik > DPG-Verhandlungen > 2013 > Hannover