3 papers
physics.optics2025
Aspects of quantum geometry in photonic time crystals
Karthik Subramaniam Eswaran, Ali Emami Kopaei, Krzysztof Sacha
We develop a geometric description of quantum light in photonic time crystals on the SU(1,1) coherent-state manifold. In a projective picture, the evolution of each mode appears as…
physics.optics2025
Towards Timetronics with Photonic Systems
Ali Emami Kopaei, Karthik Subramaniam Eswaran, Arkadiusz Kosior +5
Periodic driving of particles can create crystalline structures in their dynamics. Such systems can be used to study solid-state physics phenomena in the time domain. In addition,…
physics.optics2025
Anderson Localization in Photonic Time Crystals
Karthik Subramaniam Eswaran, Ali Emami Kopaei, Krzysztof Sacha
Solutions of the wave equations for time-independent disordered media can exhibit Anderson localization where instead of wave propagation we observe their localization around diffe…