A quantum walk comb source at telecommunication wavelengths
Diddams, S. A., Vahala, K. & Udem, T. Optical frequency combs: coherently uniting the electromagnetic spectrum. Science 369,…
Dissipative solitons in mode-locked parity–time-symmetric lasers
Bender, C. M. & Boettcher, S. Real spectra in non-Hermitian Hamiltonians having \({\mathcal{P}}{\mathcal{T}}\) symmetry. Phys. Rev. Lett. 80,…