QuTech and Kavli Institute of Nanoscience, Delft University of Technology
Networks powered by quantum entanglement: from the first loophole-free Bell test to a quantum Internet
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 fulfil 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  (similar to that of trapped atomic qubits) with a local register of robust and well-controlled nuclear spin qubits .
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.
Monday, 30 January 2017,
16:30h get-together with coffee and snacks!
Lise Meitner Hörsaal, Strudlhofgasse 4, 1st floor, Vienna
The seminar talk will be preceded by a CoQuS Student talk at 17:00h
Philippe Allard Guerin
University of Vienna
Exponential communication complexity advantage from quantum superposition of causal orders
Hosted by: Philip Walther