75 citations · 335 across the 20 of their papers we have counts for
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Converting non-Hermitian degeneracies of any order: Hierarchies of exceptional points and degeneracy manifolds
Grigory A. Starkov, Sharareh Sayyad
The emergence of various types of degeneracies plays a crucial role in optimizing and engineering different physical phenomena in non-Hermitian physics. In our work, we focus on th…
Characterizing all non-Hermitian degeneracies using algebraic approaches: Defectiveness and asymptotic behavior
Sharareh Sayyad, Grigory A. Starkov
The presence of degeneracies plays a crucial role in describing the behavior of non-Hermitian (NH) systems. In these systems, there are two key types of degeneracies: -bolical d…
Transfer learning from Hermitian to non-Hermitian quantum many-body physics
Sharareh Sayyad, Jose L. Lado
Identifying phase boundaries of interacting systems is one of the key steps to understanding quantum many-body models. The development of various numerical and analytical methods h…
Topological phase diagrams of exactly solvable non-Hermitian interacting Kitaev chains
Sharareh Sayyad, Jose L. Lado
Many-body interactions give rise to the appearance of exotic phases in Hermitian physics. Despite their importance, many-body effects remain an open problem in non-Hermitian physic…
Digital Discovery of 100 diverse Quantum Experiments with PyTheus
Carlos Ruiz-Gonzalez, Sören Arlt, Jan Petermann +6
Photons are the physical system of choice for performing experimental tests of the foundations of quantum mechanics. Furthermore, photonic quantum technology is a main player in th…
Protection of all nondefective twofold degeneracies by anti-unitary symmetries in non-Hermitian systems
Sharareh Sayyad
Non-Hermitian degeneracies are classified as defective and nondefective exceptional points~(EP). While in defective EPs, both eigenvalues and eigenenergies coalesce, nondefective E…
Symmetry-protected exceptional and nodal points in non-Hermitian systems
Sharareh Sayyad, Marcus Stalhammar, Lukas Rodland +1
One of the unique features of non-Hermitian~(NH) systems is the appearance of non-Hermitian degeneracies known as exceptional points~(EPs). The extensively studied defective EPs oc…
Realizing exceptional points of any order in the presence of symmetry
Sharareh Sayyad, Flore K. Kunst
Exceptional points~(EPs) appear as degeneracies in the spectrum of non-Hermitian matrices at which the eigenvectors coalesce. In general, an EP of order may find room to emerge…