74 citations · 289 across the 45 of their papers we have counts for
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cond-mat.other2014★ 6 cited
Comment on 'Counterintuitive Dispersion Violating Kramers-Kronig Relations in Gain Slabs'
D. G. Baranov, A. A. Zyablovsky, A. V. Dorofeenko +2
In this Comment, we refute conclusions made in Phys. Rev. Lett. 112, 233601 (2014) by L.-G. Wang, L. Wang, M. Al-Amri, S.-Y. Zhu, and M. S. Zubairy. These conclusions stem from the…
physics.optics2014★ 74 cited
Causality and phase transitions in PT-symmetrical optical systems
A. A. Zyablovsky, A. P. Vinogradov, A. V. Dorofeenko +2
We discuss phase transitions in PT-symmetric optical systems. We show that due to frequency dispersion of the dielectric permittivity, an optical system can have PT-symmetry at iso…