The dawn of quantum networks
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-06-01 |
| Authors | Ronald Hanson |
| Institutions | QuTech, Delft University of Technology |
Abstract
Section titled āAbstractāSummary form only given. 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 Bellās inequalities [3,4] and the first primitive network experiments on a pair of spatially separated two-qubit nodes.