Alice & Bob Demonstrates New Approach to Stabilizing Cat With DC Voltage Bias

Insider Brief Alice & Bob and ENS Lyon demonstrated a voltage-driven approach to stabilizing cat qubits that could enable more compact quantum hardware with lower heat generation.

Adjusting the voltage enabled one-, two- and four-photon exchanges on the same chip, potentially supporting four-component cat qubits.

In Alice & Bob’s current cat qubits, the coupler is driven by a carefully engineered microwave signal, an approach the company has refined over many years.

These could support the development of four-component cat qubits, which encode information across four coherent states.

“This new approach could support the development of four-component cat qubits, which encode information across four coherent states.