3 papers
quant-ph2026
Latent symmetry in a minimal non-Hermitian trimer
Paulo A. Brandão
We study a minimal non-Hermitian trimer with latent symmetry formed by a cospectral pair of sites embedded in a three-site network with nonreciprocal couplings. We show that cospec…
quant-ph2026
Perfect state transfer in quantum photonic networks based on Fourier modes
Sunita Meena, Sugar Singh Meena, Paulo A Brandão +1
We propose a quantum network consisting of optical waveguides in the linear regime for quantum state transfer. The circular topology of our network introduces novel functionalities…
physics.optics2025
Anomalous transparency of photons in non-Markovian coupled waveguides
J. R. Silva, P. A. Brandão
The transmission of photons through a pair of coupled single-mode waveguides is studied in detail. It is assumed that one of the waveguides is coupled to a non-Markovian reservoir,…