Objective The world of atoms is governed by the rules of quantum mechanics. Over the past century, quantum-mechanical phenomena such as superposition and entanglement have been observed and studied with great precision. Today, we are entering a new era in which we can hope to explore quantum mechanics in larger objects. The science of quantum mechanics in more complex objects is barely known and as a result quantum mechanics is rarely explicitly used in technology. Theoretically, superposition and entanglement could be exploited as a new resource in a wide variety of future applications. We focus on information science and investigate the use of quantum mechanics in computing, i.e. a quantum computer (QC). If information is encoded in quantum superpositions and processed by exploiting entanglement, a QC can solve computational problems that are beyond the reach of conventional computers. Building a QC is, however, an enormous scientific challenge because the fragile quantum bits need to be protected from and corrected for even the smallest disturbances by the environment. Meeting this challenge requires a synergetic effort combining the best of quantum theory, electrical engineering, materials science, applied physics and computer science. This proposal aims to achieve a robust, exemplary QC. We propose a circuit containing processor qubits (two types: superconducting transmon qubits and spin qubits in silicon quantum dots), memory qubits (two types: topological qubits with nanowires and donor qubits), and a quantum databus (superconducting striplines). Our goal is to demonstrate a 13-qubit circuit that incorporates fault-tolerance through implementation of a surface code. We will demonstrate back-and-forth quantum state transfer between processor and memory qubits. Our team brings together the required expertise into a single “QC-lab” enabling us to bring our understanding of quantum mechanics to the next level and push QC to the tipping point from science to engineering. Fields of science natural sciencesphysical sciencesquantum physicsnatural sciencescomputer and information sciencesengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computersnatural scienceschemical sciencesinorganic chemistrymetalloidsnatural sciencesphysical scienceselectromagnetism and electronicssuperconductivity Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) ERC-2012-SyG - ERC Synergy Grant Call for proposal ERC-2012-SyG See other projects for this call Funding Scheme ERC-SyG - Synergy grant Lead Principal Investigator Lieven Mark Koenraad Vandersypen Prof. Host institution TECHNISCHE UNIVERSITEIT DELFT EU contribution € 13 330 000,00 Address STEVINWEG 1 2628 CN Delft Netherlands See on map Region West-Nederland Zuid-Holland Delft en Westland Activity type Higher or Secondary Education Establishments Principal investigator Carlo Willem Joannes Beenakker (Prof.) Administrative Contact Jose Van Vugt (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data Beneficiaries (2) Sort alphabetically Sort by EU Contribution Expand all Collapse all TECHNISCHE UNIVERSITEIT DELFT Netherlands EU contribution € 13 330 000,00 Address STEVINWEG 1 2628 CN Delft See on map Region West-Nederland Zuid-Holland Delft en Westland Activity type Higher or Secondary Education Establishments Principal investigator Carlo Willem Joannes Beenakker (Prof.) Administrative Contact Jose Van Vugt (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data UNIVERSITEIT LEIDEN Netherlands EU contribution € 1 670 000,00 Address RAPENBURG 70 2311 EZ Leiden See on map Region West-Nederland Zuid-Holland Agglomeratie Leiden en Bollenstreek Activity type Higher or Secondary Education Establishments Administrative Contact Ton Brouwer (Mr.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data