6 papers
Dispersive readout of Majorana qubits
Thomas B. Smith, Maja C. Cassidy, David J. Reilly +2
We analyze a readout scheme for Majorana qubits based on dispersive coupling to a resonator. We consider two variants of Majorana qubits: the Majorana transmon and the Majorana box…
Quantum metamaterial for nondestructive microwave photon counting
Arne L. Grimsmo, Baptiste Royer, John Mark Kreikebaum +4
Detecting traveling photons is an essential primitive for many quantum information processing tasks. We introduce a single-photon detector design operating in the microwave domain,…
Doubly Nonlinear Superconducting Qubit
Dat Thanh Le, Arne Grimsmo, Clemens Müller +1
We describe a superconducting circuit consisting of a Josephson junction in parallel with a quantum phase slip wire, which implements a Hamiltonian that is periodic in both charge…
Quantum computing with rotation-symmetric bosonic codes
Arne L. Grimsmo, Joshua Combes, Ben Q. Baragiola
Bosonic rotation codes, introduced here, are a broad class of bosonic error-correcting codes based on phase-space rotation symmetry. We present a universal quantum computing scheme…
Control and Coherence Time Enhancement of the 0- Qubit
Agustin Di Paolo, Arne L. Grimsmo, Peter Groszkowski +2
Kitaev's 0- qubit encodes quantum information in two protected, near-degenerate states of a superconducting quantum circuit. In a recent work, we have shown that the coherence t…
Majorana Qubit Readout Using Longitudinal Qubit-Resonator Interaction
Arne L. Grimsmo, Thomas Smith
We propose a quantum non-demolition Majorana qubit readout protocol based on parametricmodulation of a longitudinal interaction between a pair of Majorana bound states and a resona…