Researchers demonstrate rapid entanglement across two- to six-partite states and extend the approach to ten-qubit entanglement, showing scalability and robustness to certain errors.

Findings suggest PT-symmetric devices could serve as versatile platforms for creating and manipulating diverse quantum resources, with potential impact on quantum information technologies and hardware development.

The acceleration in entanglement generation is linked to the unique properties of PT-symmetric systems near exceptional points, where spectral coalescence occurs.

The work reflects cross-border collaboration, involving Chinese institutions and international partners in quantum information science.

The study contrasts with passive PT-symmetric approaches and shows successful entanglement preparation even when gain and loss are not perfectly balanced.

PT-symmetric systems enable faster entanglement preparation with higher fidelity, overcoming the traditional speed–quality trade-off.

The method remains resilient against non-resonant and coupling strength errors, broadening practical applicability in quantum devices.

The research identifies and addresses a trade-off between entanglement degree and fidelity, effectively overcoming it.

Researchers include Bingbing Liu and Shilei Su from Zhengzhou University, Henan Academy of Sciences, RIKEN in Japan, and Peking University, signaling international collaboration.