84 citations · 751 across the 59 of their papers we have counts for
62 papers
Symplectic Hopf Insulator: Delicate Topology in Bosonic Bogoliubov-de Gennes Systems
Isaac Tesfaye, Giandomenico Palumbo
Recent advances in topological phases have highlighted the role of symplectic (Krein-space) topology in the classification of bosonic Bogoliubov-de Gennes (BBdG) systems. In this w…
Gouy Phase across PT-Symmetry Breaking in Non-Hermitian Dirac Systems
Dirlan J. C. de Morais Sousa, Lucas S. Marinho, Giandomenico Palumbo +1
We study relativistic beam-like wave packets governed by a quasi-Hermitian massive Dirac Hamiltonian and uncover anomalous Gouy-phase behavior in non-Hermitian dynamics. We show th…
Boosting State Discrimination in Quantum Brownian Motion Channel via Memory-Induced Coherence Preservation
João C. P. Porto, Pedro R. Dieguez, Carlos H. S. Vieira +3
Preserving quantum resources in dissipative environments is a fundamental challenge in quantum information processing. While environmental interactions usually degrade quantum reso…
Layer-Resolved Topological Metals in the Bilayer Lieb Lattice
Mengjie Yang, S Rahul, Giandomenico Palumbo
We identify a two-dimensional time-reversal-invariant topological metallic phase on a bilayer Lieb lattice, characterized by a quantized layer--resolved pseudo-spin Chern number. W…
Zero Indirect Band Gap in Non-Hermitian Systems
S Rahul, Giandomenico Palumbo
Zero indirect gaps in band models are typically viewed as unstable and achievable only through fine-tuning. Recent works, however, have revealed robust semimetallic phases in Hermi…
Probing Tensor Monopoles and Gerbe Invariants in Three-Dimensional Topological Matter
Wojciech J. Jankowski, Robert-Jan Slager, Giandomenico Palumbo
We show that momentum-space tensor monopoles corresponding to nontrivial vector bundle generalizations, known as bundle gerbes, can be realized in bands of three-dimensional topolo…