Adrian Lupascu, Institute for Quantum Computing
Quantum superconducting circuits are nanostructured superconducting electrical networks with Josephson junctions. At low temperatures, their quantum dynamics is properly described by using a few degrees of freedom with a collective character. The parameters in the Hamiltonian depend on the dimensions and topology of the circuit; superconducting quantum circuits therefore behave as artificial atoms.
Superconducting quantum circuits have potential applications in quantum information processing and provide a testbed for the study of light-matter interaction in a new regime of ultra-strong interactions.
The main focus of our research is quantum computing with flux-type superconducting quantum bits. I will discuss a new type of quantum gate applicable to two flux qubits which requires a minimum amount of resources. I will present as well a circuit for quantum non-demolition detection of microwave photons.
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