General Lab Information

  • Modular Quantum Architectures via Parametric Controls

    September 9, 2021

    C2QA Quantum Thursdays: Parametric driving has long been used in weakly nonlinear superconducting circuits to create nearly quantum-limited 'parametric' amplifiers, which are in wide use for the readout of superconducting qubits. However, our and others recent work show that we can extend parametric pumping schemes to create a variety of other vital components of quantum computers, including single- and two-qubit gates as well as controlled, coherent links between distant qubits. Michael Hatridge review the basics of parametric control and present our recent realization of a 'quantum signal router' which allows us to create coherent, all-to-all links among four superconducting quantum modules, and operate the system as a small modular quantum computer.