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Dresden 2017 – scientific programme

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PV: Plenarvorträge

PV XVI

PV XVI: Plenary Talk

Wednesday, March 22, 2017, 14:00–14:45, HSZ 01

Networks powered by quantum entanglement: from the first loophole-free Bell test to a quantum Internet — •Ronald Hanson — QuTech and Kavli Institute of Nanoscience, Delft University of Technology

Entanglement - the property that particles can share a single quantum state - is arguably the most counterintuitive yet potentially most powerful element of quantum physics. Future quantum networks may harness the unique features of entanglement in a range of exciting applications, such as quantum computation and simulation, secure communication, enhanced metrology for astronomy and time-keeping as well as fundamental tests of nature. To fulfill these promises, a strong worldwide effort is ongoing to gain precise control over multi-particle nodes and to wire them up using quantum-photonic channels. Diamond spins associated with NV centers are promising building blocks for such a network as they combine a coherent electron-optical interface [1] (similar to that of trapped atomic qubits) with a local register of robust and well-controlled nuclear spin qubits [2].

Here I will introduce the field of quantum networks and present an overview of the latest progress, including the first loophole-free violation of Bell s inequalities [3,4] and the first primitive network experiments on a pair on spatially separated two-qubit nodes.

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