Automated reconstruction of bound states in bilayer graphene quantum dots

Kavli Affiliate: Eliska Greplova | First 5 Authors: Jozef Bucko, Frank Schäfer, František Herman, Rebekka Garreis, Chuyao Tong | Summary: Bilayer graphene is a nanomaterial that allows for well-defined, separated quantum states to be defined by electrostatic gating and, therefore, provides an attractive platform to construct tunable quantum dots. When a magnetic field perpendicular to […]


Continue.. Automated reconstruction of bound states in bilayer graphene quantum dots

Automated reconstruction of bound states in bilayer graphene quantum dots

Kavli Affiliate: Eliska Greplova | First 5 Authors: Jozef Bucko, Frank Schäfer, František Herman, Rebekka Garreis, Chuyao Tong | Summary: Bilayer graphene is a nanomaterial that allows for well-defined, separated quantum states to be defined by electrostatic gating and, therefore, provides an attractive platform to construct tunable quantum dots. When a magnetic field perpendicular to […]


Continue.. Automated reconstruction of bound states in bilayer graphene quantum dots

Tunable crossed Andreev reflection and elastic co-tunneling between quantum dots

Kavli Affiliate: Michael Wimmer | First 5 Authors: Chun-Xiao Liu, Guanzhong Wang, Tom Dvir, Michael Wimmer, | Summary: The mesoscopic system of two separate quantum dots connected by a common superconductor has been studied extensively for Cooper pair splitting, and is predicted to be the building block of an emulated Kitaev chain. The physical mechanisms […]


Continue.. Tunable crossed Andreev reflection and elastic co-tunneling between quantum dots

Tunable Cooper pair splitting via Andreev bound states

Kavli Affiliate: Michael Wimmer | First 5 Authors: Chun-Xiao Liu, Guanzhong Wang, Tom Dvir, Michael Wimmer, | Summary: Two spatially separated quantum dots connected by a common superconductor has been studied extensively for Cooper pair splitting, and is predicted to be the building block of an emulated Kitaev chain. The effective couplings between quantum dots […]


Continue.. Tunable Cooper pair splitting via Andreev bound states

Tunable superconducting coupling of quantum dots via Andreev bound states

Kavli Affiliate: Michael Wimmer | First 5 Authors: Chun-Xiao Liu, Guanzhong Wang, Tom Dvir, Michael Wimmer, | Summary: Semiconductor quantum dots have proven to be a useful platform for quantum simulation in the solid state. However, implementing a superconducting coupling between quantum dots mediated by a Cooper pair has so far suffered from limited tunability […]


Continue.. Tunable superconducting coupling of quantum dots via Andreev bound states

Tunable superconducting coupling of quantum dots via Andreev bound states in semiconductor-superconductor nanowires

Kavli Affiliate: Michael Wimmer | First 5 Authors: Chun-Xiao Liu, Guanzhong Wang, Tom Dvir, Michael Wimmer, | Summary: Semiconductor quantum dots have proven to be a useful platform for quantum simulation in the solid state. However, implementing a superconducting coupling between quantum dots mediated by a Cooper pair has so far suffered from limited tunability […]


Continue.. Tunable superconducting coupling of quantum dots via Andreev bound states in semiconductor-superconductor nanowires

Tunable superconducting coupling of quantum dots via Andreev bound states in semiconductor-superconductor nanowires

Kavli Affiliate: Michael Wimmer | First 5 Authors: Chun-Xiao Liu, Guanzhong Wang, Tom Dvir, Michael Wimmer, | Summary: Semiconductor quantum dots have proven to be a useful platform for quantum simulation in the solid state. However, implementing a superconducting coupling between quantum dots mediated by a Cooper pair has so far suffered from limited tunability […]


Continue.. Tunable superconducting coupling of quantum dots via Andreev bound states in semiconductor-superconductor nanowires

Universal control of a six-qubit quantum processor in silicon

Kavli Affiliate: Menno Veldhorst | First 5 Authors: Stephan G. J. Philips, Mateusz T. Mądzik, Sergey V. Amitonov, Sander L. de Snoo, Maximilian Russ | Summary: Future quantum computers capable of solving relevant problems will require a large number of qubits that can be operated reliably. However, the requirements of having a large qubit count […]


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Optimizing the topological properties of stacking semiconductor-ferromagnet-superconductor heterostructures

Kavli Affiliate: Michael Wimmer | First 5 Authors: Chun-Xiao Liu, Michael Wimmer, , , | Summary: We study the electronic properties of a planar semiconductor-superconductor heterostructure, in which a thin ferromagnetic insulator layer lies in between and acts as a spin filtering barrier. We find that in such a system one can simultaneously enhance the […]


Continue.. Optimizing the topological properties of stacking semiconductor-ferromagnet-superconductor heterostructures