On March 3rd, Jan Benhelm, Bruno Küng and I were thrilled to welcome a diverse audience from all over the world to present our newest instrument - the SHFQC Qubit Controller. In the first part of the webinar Jan explained how the SHFQC integrates a full qubit control system for...
Bell-state stabilization with real-time feedback is a key milestone for the implementation of surface code [1], which is one of the most promising quantum error correction codes for building large-scale quantum computers [2]. Fundamental requirements for realizing this code are high fidelity and rapid readout of qubits, high fidelity gate...
Randomized benchmarking (RB) is a widely used tool in quantum information science to determine qubit fidelity and to characterize individual qubit gates. It is also an excellent example of a quantum experiment with advanced requirements on the control hardware and software. For an RB experiment, we apply random sequences of...
On April 29th, Jan Benhelm, Mark Kasperczyk and I welcomed a crowd of customers to the interactive online event introducing Zurich Instruments’ newest product, the SHFSG Signal Generator. Our aim was to present multiple perspectives on the launch of this powerful instrument. Jan provided an overview of Zurich Instruments’ quantum...
When working with qubits, it’s essential to have a reliable state preparation. The easiest method for superconducting qubits is to passively wait for the qubit to decay into its ground state, but it’s slow and has poor fidelity. Active qubit reset decreases considerably the initialization time, while greatly increasing the...
On August 20, we talked about our fast and scalable approach to controlling 100 qubits and more. The webinar was recorded and is available on demand here . In the first part of the webinar, we covered our fast approach and explained how to get a handle on the complexity...
Frequency-multiplexed readout of qubits is at the heart of superconducting quantum processors and an essential step for scalable architectures. The UHFQA Quantum Analyzer is specifically tailored for this challenge and brings the latest technology to work in your lab - using high level API. In this blog post we demonstrate...
High quantum gate fidelity is essential for all quantum hardware platforms. Temporal sensitivity to flux noise and flux pulse distortion can pose major limitations to achieving high fidelity with repeatable two-qubit gates in transmon qubits. In a recent publication, Rol and collaborators demonstrated a fast (40 ns), low-leakage (0.1%), high-fidelity...
If you are using the Zurich Instruments HDAWG, the answer is no. Let's see why. Parametrically modulated superconducting qubit gates (parametric gates) are usually accomplished by RF-modulation – typically several hundred MHz – of the flux through a mediating coupler element or qubit. Usually, many dBm of signal power are...
