Experimentalphysik Quantenphysik (Zumbühl)Head of Research Unit Prof. Dr. Dominik Zumbühl, Prof. Dr.OverviewMembersPublicationsProjects & CollaborationsProjects & Collaborations OverviewMembersPublicationsProjects & Collaborations Projects & Collaborations 25 foundShow per page10 10 20 50 MetriQ: Metrological Integrated Electronics for mK Thermometry Research Project | 1 Project MembersImported from Grants Tool 4722010 Atomic Defect-Mediated Tunnel Spectroscopy of Superconducting and Correlated Electronic Phases Research Project | 1 Project MembersImported from Grants Tool 4708612 NCCR SPIN - Moth A6.4 20% Research Project | 2 Project MembersImported from Grants Tool 4709577 UpQuantVal Research Project | 1 Project MembersImported from Grants Tool 4718568 Werner-Siemens Forschungszentrum für molekulare Quantensysteme (MolQ) Research Project | 2 Project MembersImported from Grants Tool 4708226 Quantum Coherence in Nanoscale Systems Research Project | 1 Project MembersImported from Grants Tool 4650779 Scanning Nanowire Quantum Dot Research Project | 2 Project MembersIn this project we aim to combine the exceptional sensitivity of nanowire quantum dots as detectors of charge with scanning probe capabilities of customized cantilevers. The resulting scanning nanowire quantum dot will enable imaging of localized charges and electron densities with high sensitivity, high resolution, and under a large variety of environmental circumstances. QUSTEC PhD fellowship - Germanium Silicon Nanowire Nanostructures Research Project | 1 Project Membersabstract QUSTEC PhD fellowship - Quantum transport at microkelvin temperatures Research Project | 1 Project Membersabstract TOPSQUAD / TOPOLOGICALLY PROTECTED AND SCALABLE QUANTUM BITS Research Project | 4 Project MembersOur vision is to enable the world of quantum computing through an unprecedented stable and scalable manyqubi system. This platform will allow us to establish important scientific breakthroughs such as the observation of Majorana bound states, which can lead to the new field of non-Abelian many-body physics. A universal quantum computer can be exponentially faster than classical computers for certain scientific and technological applications. This long-awaited innovation can help solve many global challenges of our time related to health, energy and the climate, such as quantum chemistry problems in order to design new medicines, material property prediction for efficient energy storage, big data handling problems, needed for complexity of climate physics. Such a quantum computer has not yet been realized because of qubit fragility and qubit scalability. The output of TOPSQUAD lays the foundation for universal quantum computing with stable and scalable qubits: We will address qubit fragility by creating topological states, which are insensitive to decoherence. We will address qubit scalability by developing waferscale fabrication technology, using CMOS-compatible processes. After TOPSQUAD, existing integrated-circuit technology can then serve to scale up from individual qubits to 100,000s. These two approaches have not been combined within a single system, but our recent results show that we can be the first to address the key challenges: 1. For the first time we will synthesise Ge wires on silicon wafers using scalable CMOS-compatible processes. 2. We will devise an unprecedented silicon system with the required topological properties: Ge wires with a silicon shell. 3. The thin Si shell will suppress metallization, thus avoiding the destruction of topological states by proximityinduced superconductivity, a typically overlooked problem. With this, TOPSQUAD can realize a scalable, CMOS-compatible, topologically protected system. 123 123 OverviewMembersPublicationsProjects & Collaborations
Projects & Collaborations 25 foundShow per page10 10 20 50 MetriQ: Metrological Integrated Electronics for mK Thermometry Research Project | 1 Project MembersImported from Grants Tool 4722010 Atomic Defect-Mediated Tunnel Spectroscopy of Superconducting and Correlated Electronic Phases Research Project | 1 Project MembersImported from Grants Tool 4708612 NCCR SPIN - Moth A6.4 20% Research Project | 2 Project MembersImported from Grants Tool 4709577 UpQuantVal Research Project | 1 Project MembersImported from Grants Tool 4718568 Werner-Siemens Forschungszentrum für molekulare Quantensysteme (MolQ) Research Project | 2 Project MembersImported from Grants Tool 4708226 Quantum Coherence in Nanoscale Systems Research Project | 1 Project MembersImported from Grants Tool 4650779 Scanning Nanowire Quantum Dot Research Project | 2 Project MembersIn this project we aim to combine the exceptional sensitivity of nanowire quantum dots as detectors of charge with scanning probe capabilities of customized cantilevers. The resulting scanning nanowire quantum dot will enable imaging of localized charges and electron densities with high sensitivity, high resolution, and under a large variety of environmental circumstances. QUSTEC PhD fellowship - Germanium Silicon Nanowire Nanostructures Research Project | 1 Project Membersabstract QUSTEC PhD fellowship - Quantum transport at microkelvin temperatures Research Project | 1 Project Membersabstract TOPSQUAD / TOPOLOGICALLY PROTECTED AND SCALABLE QUANTUM BITS Research Project | 4 Project MembersOur vision is to enable the world of quantum computing through an unprecedented stable and scalable manyqubi system. This platform will allow us to establish important scientific breakthroughs such as the observation of Majorana bound states, which can lead to the new field of non-Abelian many-body physics. A universal quantum computer can be exponentially faster than classical computers for certain scientific and technological applications. This long-awaited innovation can help solve many global challenges of our time related to health, energy and the climate, such as quantum chemistry problems in order to design new medicines, material property prediction for efficient energy storage, big data handling problems, needed for complexity of climate physics. Such a quantum computer has not yet been realized because of qubit fragility and qubit scalability. The output of TOPSQUAD lays the foundation for universal quantum computing with stable and scalable qubits: We will address qubit fragility by creating topological states, which are insensitive to decoherence. We will address qubit scalability by developing waferscale fabrication technology, using CMOS-compatible processes. After TOPSQUAD, existing integrated-circuit technology can then serve to scale up from individual qubits to 100,000s. These two approaches have not been combined within a single system, but our recent results show that we can be the first to address the key challenges: 1. For the first time we will synthesise Ge wires on silicon wafers using scalable CMOS-compatible processes. 2. We will devise an unprecedented silicon system with the required topological properties: Ge wires with a silicon shell. 3. The thin Si shell will suppress metallization, thus avoiding the destruction of topological states by proximityinduced superconductivity, a typically overlooked problem. With this, TOPSQUAD can realize a scalable, CMOS-compatible, topologically protected system. 123 123
MetriQ: Metrological Integrated Electronics for mK Thermometry Research Project | 1 Project MembersImported from Grants Tool 4722010
Atomic Defect-Mediated Tunnel Spectroscopy of Superconducting and Correlated Electronic Phases Research Project | 1 Project MembersImported from Grants Tool 4708612
Werner-Siemens Forschungszentrum für molekulare Quantensysteme (MolQ) Research Project | 2 Project MembersImported from Grants Tool 4708226
Quantum Coherence in Nanoscale Systems Research Project | 1 Project MembersImported from Grants Tool 4650779
Scanning Nanowire Quantum Dot Research Project | 2 Project MembersIn this project we aim to combine the exceptional sensitivity of nanowire quantum dots as detectors of charge with scanning probe capabilities of customized cantilevers. The resulting scanning nanowire quantum dot will enable imaging of localized charges and electron densities with high sensitivity, high resolution, and under a large variety of environmental circumstances.
QUSTEC PhD fellowship - Germanium Silicon Nanowire Nanostructures Research Project | 1 Project Membersabstract
QUSTEC PhD fellowship - Quantum transport at microkelvin temperatures Research Project | 1 Project Membersabstract
TOPSQUAD / TOPOLOGICALLY PROTECTED AND SCALABLE QUANTUM BITS Research Project | 4 Project MembersOur vision is to enable the world of quantum computing through an unprecedented stable and scalable manyqubi system. This platform will allow us to establish important scientific breakthroughs such as the observation of Majorana bound states, which can lead to the new field of non-Abelian many-body physics. A universal quantum computer can be exponentially faster than classical computers for certain scientific and technological applications. This long-awaited innovation can help solve many global challenges of our time related to health, energy and the climate, such as quantum chemistry problems in order to design new medicines, material property prediction for efficient energy storage, big data handling problems, needed for complexity of climate physics. Such a quantum computer has not yet been realized because of qubit fragility and qubit scalability. The output of TOPSQUAD lays the foundation for universal quantum computing with stable and scalable qubits: We will address qubit fragility by creating topological states, which are insensitive to decoherence. We will address qubit scalability by developing waferscale fabrication technology, using CMOS-compatible processes. After TOPSQUAD, existing integrated-circuit technology can then serve to scale up from individual qubits to 100,000s. These two approaches have not been combined within a single system, but our recent results show that we can be the first to address the key challenges: 1. For the first time we will synthesise Ge wires on silicon wafers using scalable CMOS-compatible processes. 2. We will devise an unprecedented silicon system with the required topological properties: Ge wires with a silicon shell. 3. The thin Si shell will suppress metallization, thus avoiding the destruction of topological states by proximityinduced superconductivity, a typically overlooked problem. With this, TOPSQUAD can realize a scalable, CMOS-compatible, topologically protected system.
