Recovering Quantum Coherence using Active Feedback
Decoherence of qubits is caused by unwanted interactions with their environment. By monitoring the environment and correcting errors in real time, we can significantly extend qubit coherence times.
Long-Lived Qubits with Superconducting Cavities
We develop high-quality superconducting cavities to realize qubits with exceptionally long lifetimes. Combined with chip-based transmon qubits, this setup can enable high-fidelity quantum gates and yield novel insights into decoherence processes.
The Quantum Zeno Effect
Observing quantum systems can significantly impact their behavior. Unobserved systems evolve according to Schrödinger's equation, while frequent measurements can induce the Quantum Zeno Effect, effectively freezing the system's state. In our lab, we use cutting-edge experimental techniques to observe the predicted cascaded crossover between these two regimes.
