Collective quantum coherent oscillations in a globally coupled array of qubits

Understand

We report a theoretical study of coherent collective quantum dynamic effects in an array of N qubits (two-level systems) incorporated into a low-dissipation resonant cavity.

• Individual qubits are characterized by energy level differences $\Delta_i$ and we take into account a spread of parameters $\Delta_i$.
• Non-interacting qubits display coherent quantum beatings with N different frequencies, i.e.
• $\omega_i=\Delta_i/\hbar$ .