250 citations · 3.9k across the 99 of their papers we have counts for
99 papers
Bulk-boundary correspondence in topological two-dimensional non-Hermitian systems: Toeplitz operators and singular values
J. Sirker
In contrast to eigenvalue-based approaches, we formulate the bulk-boundary correspondence for two-dimensional non-Hermitian quadratic lattice Hamiltonians in terms of Toeplitz oper…
Parastatistics in Interacting Periodic Chains Revealed by Peierls Phase Twists and Shifted Conformal Towers
D. Schuricht, J. Sirker
We consider interacting paraparticle chains with a constant -matrix where the Hamiltonian sums over the internal degrees (flavors) of the paraparticles. For such flavor-blind Ha…
A Dynamical Bulk-Boundary Correspondence in Two Dimensional Topological Matter
Tomasz Masłowski, Jesko Sirker, Nicholas Sedlmayr
We provide strong numerical evidence for a dynamical bulk-boundary correspondence in two-dimensional topological matter which manifests itself as boundary contributions to the dyna…
Noise-Affected Dynamical Quantum Phase Transitions
R. Jafari, Alireza Akbari, Mehdi Biderang +1
We investigate the effects of uncorrelated noise on dynamical quantum phase transitions (DQPTs) in fermionic two-band models following a quantum ramp across critical points. We con…
Exceptional Points, Bulk-Boundary Correspondence, and Entanglement Properties for a Dimerized Hatano-Nelson Model with Staggered Potentials
Yasamin Mardani, Rodrigo A. Pimenta, Jesko Sirker
It is well-known that the standard bulk-boundary correspondence does not hold for non-Hermitian systems in which also new phenomena such as exceptional points do occur. Here we stu…
Fisher zeroes and dynamical quantum phase transitions for two- and three-dimensional models
Tomasz Masłowski, Hadi Cheraghi, Jesko Sirker +1
Dynamical quantum phase transitions are non-analyticities in a dynamical free energy (or return rate) which occur at critical times. Although extensively studied in one dimension,…