6 papers
Stabilization of Finite-Energy Gottesman-Kitaev-Preskill States
Baptiste Royer, Shraddha Singh, S. M. Girvin
We introduce a new approach to Gottesman-Kitaev-Preskill (GKP) states that treats their finite-energy version in an exact manner. Based on this analysis, we develop new qubit-oscil…
Microwave Quantum Link between Superconducting Circuits Housed in Spatially Separated Cryogenic Systems
Paul Magnard, Simon Storz, Philipp Kurpiers +10
Superconducting circuits are a strong contender for realizing quantum computing systems, and are also successfully used to study quantum optics and hybrid quantum systems. However,…
Demonstration of an All-Microwave Controlled-Phase Gate between Far Detuned Qubits
S. Krinner, P. Kurpiers, B. Royer +6
A challenge in building large-scale superconducting quantum processors is to find the right balance between coherence, qubit addressability, qubit-qubit coupling strength, circuit…
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,…
Quantum communication with time-bin encoded microwave photons
Philipp Kurpiers, Marek Pechal, Baptiste Royer +10
Heralding techniques are useful in quantum communication to circumvent losses without resorting to error correction schemes or quantum repeaters. Such techniques are realized, for…
Qubit Parity Measurement by Parametric Driving in Circuit QED
Baptiste Royer, Shruti Puri, Alexandre Blais
Multi-qubit parity measurements are essential to quantum error correction. Current realizations of these measurements often rely on ancilla qubits, a method that is sensitive to fa…