346 citations · 2.3k across the 17 of their papers we have counts for
16 papers · 1 filter
Parity Detection of Propagating Microwave Fields
Jean-Claude Besse, Simone Gasparinetti, Michele C. Collodo +5
The parity of the number of elementary excitations present in a quantum system provides important insights into its physical properties. Parity measurements are used, for example,…
Two-Photon Resonance Fluorescence of a Ladder-Type Atomic System
Simone Gasparinetti, Jean-Claude Besse, Marek Pechal +4
Multi-photon emitters are a sought-after resource in quantum photonics. Nonlinear interactions between a multi-level atomic system and a coherent drive can lead to resonant two-pho…
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…
Observation of the Crossover from Photon Ordering to Delocalization in Tunably Coupled Resonators
Michele C. Collodo, Anton Potočnik, Simone Gasparinetti +6
Networks of nonlinear resonators offer intriguing perspectives as quantum simulators for non-equilibrium many-body phases of driven-dissipative systems. Here, we employ photon corr…
Coherent microwave photon mediated coupling between a semiconductor and a superconductor qubit
P. Scarlino, D. J. van Woerkom, U. C. Mendes +10
Semiconductor qubits rely on the control of charge and spin degrees of freedom of electrons or holes confined in quantum dots (QDs). They constitute a promising approach to quantum…
Challenging local realism with human choices
The BIG Bell Test Collaboration, C. Abellán, A. Acín +105
A Bell test is a randomized trial that compares experimental observations against the philosophical worldview of local realism. A Bell test requires spatially distributed entanglem…
Rapid high-fidelity multiplexed readout of superconducting qubits
Johannes Heinsoo, Christian Kraglund Andersen, Ants Remm +8
The duration and fidelity of qubit readout is a critical factor for applications in quantum information processing as it limits the fidelity of algorithms which reuse qubits after…
Fast and Unconditional All-Microwave Reset of a Superconducting Qubit
Paul Magnard, Philipp Kurpiers, Baptiste Royer +8
Active qubit reset is a key operation in many quantum algorithms, and particularly in error correction codes. Here, we experimentally demonstrate a reset scheme of a three level tr…
Deterministic Quantum State Transfer and Generation of Remote Entanglement using Microwave Photons
Philipp Kurpiers, Paul Magnard, Theo Walter +10
Sharing information coherently between nodes of a quantum network is at the foundation of distributed quantum information processing. In this scheme, the computation is divided int…
Single-Shot Quantum Non-Demolition Detection of Itinerant Microwave Photons
Jean-Claude Besse, Simone Gasparinetti, Michele C. Collodo +5
Single-photon detection is an essential component in many experiments in quantum optics, but remains challenging in the microwave domain. We realize a quantum non-demolition detect…
All-Microwave Control and Dispersive Readout of Gate-Defined Quantum Dot Qubits in Circuit Quantum Electrodynamics
P. Scarlino, D. J. van Woerkom, A. Stockklauser +8
Developing fast and accurate control and readout techniques is an important challenge in quantum information processing with semiconductor qubits. Here, we study the dynamics and t…
Correlations and entanglement of microwave photons emitted in a cascade decay
Simone Gasparinetti, Marek Pechal, Jean-Claude Besse +3
An excited emitter decays by radiating a photon into a quantized mode of the electromagnetic field, a process known as spontaneous emission. If the emitter is driven to a higher ex…
Realizing Rapid, High-Fidelity, Single-Shot Dispersive Readout of Superconducting Qubits
T. Walter, P. Kurpiers, S. Gasparinetti +8
The speed of quantum gates and measurements is a decisive factor for the overall fidelity of quantum protocols when performed on physical qubits with finite coherence time. Reducin…
Observation of topological Uhlmann phases with superconducting qubits
O. Viyuela, A. Rivas, S. Gasparinetti +3
Topological insulators and superconductors at finite temperature can be characterized by the topological Uhlmann phase. However, a direct experimental measurement of this invariant…
Superconducting switch for fast on-chip routing of quantum microwave fields
M. Pechal, J. -C. Besse, M. Mondal +3
A switch capable of routing microwave signals at cryogenic temperatures is a desirable component for state-of-the-art experiments in many fields of applied physics, including but n…
Measurement of a Vacuum-Induced Geometric Phase
Simone Gasparinetti, Simon Berger, Abdufarrukh A. Abdumalikov +3
Berry's geometric phase naturally appears when a quantum system is driven by an external field whose parameters are slowly and cyclically changed. A variation in the coupling betwe…