Ultrafast electronics on chip

Colloquium: Dr. Eryin Wang

Ultrafast optical control has emerged as a powerful tool for manipulating the functional properties of
quantum materials [1,2]. These non‐equilibrium phenomena occur at femto‐ to pico‐second timescales
which are intrinsic to the microscopic interactions between electron, spin and lattice, offering the
potential for faster on‐chip electronics. A key challenge for application is “reading” the electrical
response, namely voltage or current signals, of photo‐induced transient phases. Here I present two
examples [3,4] of using newly developed on‐chip ultrafast transport techniques [5] to detect the
electrical signals from light‐induced superconducting‐like state in K₃C₆₀ [6].

[1] Disa, A.S. et al., Nat. Phys. 17, 1087 (2021).
[2] de la Torre, A. et al., Rev. Mod. Phys. 93, 041002 (2021).
[3] Wang. E., et al., Nat. Commun. 14, 7233 (2023).
[4] Adelinia, J.D., arXiv:2312.06421 (2023).
[5] J. W. Mclver et al., Nat. Phys. 16, 937 (2020)
[6] M. Mitrano et al., Nature 530, 461 (2016)