7 papers
Spin singlets are useful
Silas Hoffman, Edward H. Chen, Matthew Brooks +6
We evaluate the utility of the spin-zero manifold of an exchange-coupled array of spins for tasks in quantum computation and quantum simulation. Since pairs of electrons can be…
Voltage-tunable Josephson Junctions on Germanium Quantum Wells with in-situ Aluminum Contacts
Joshua P. Thompson, Jason T. Dong, Bernardo Langa +12
Voltage-tunable Josephson junctions (VT-JJs) are an emerging element in superconducting quantum electronics with potential to expand the functionality of conventional designs. Whil…
Gate-dependent offset charge shifts and anharmonicity in gatemon qubits in the weak tunneling regime
Utkan Güngördü, Rusko Ruskov, Silas Hoffman +3
Gatemon qubits are based on a superconductor-quantum dot-superconductor (S-QD-S) junction which enables in situ electrostatic tuning via a gate electrode. For a single-channel QD t…
Measurement-based Simulation of Geometric Gates in Topological Qubits on NISQ Devices
Matthew Brooks, Foster Sabatino, Charles Tahan +1
While the adiabatic exchange of Majorana zero modes (MZMs) enables a non-universal set of geometrically protected gates, realising an experimental implementation of MZM braiding re…
Simulated Non-Abelian Statistics of Majorana Zero Modes from a Kitaev Lattice
Foster Sabatino, Matthew Brooks, Charles Tahan +1
We simulate the non-Abelian exchange of Majorana zero modes (MZMs) on a quantum computer. Rather than utilizing MZMs at the boundaries of quantum Ising chains, which are typically…
Resolving Andreev spin qubits in germanium-based Josephson junctions
Silas Hoffman, Charles Tahan
Andreev spin qubits (ASQs) are a promising platform for quantum information processing which benefit from both the small footprint of semiconducting spin qubits and the long range…