10 citations · 26 across the 5 of their papers we have counts for
5 papers
Hidden Twisted Sectors and Exponential Degeneracy in Root-of-Unity XXZ Heisenberg Chains
Yongao Hu, Felix Gerken, Thore Posske
Recently, product states have been identified as simple-structured eigenstates of XXZ Heisenberg spin models in arbitrary dimensions, occurring at anisotropy values corresponding t…
Generalized Josephson effect with arbitrary periodicity in quantum magnets
Anshuman Tripathi, Felix Gerken, Peter Schmitteckert +3
Easy-plane quantum magnets are strikingly similar to superconductors, allowing for spin supercurrent and an effective superconducting phase stemming from their rotation symm…
All product eigenstates in Heisenberg models from a graphical construction
Felix Gerken, Ingo Runkel, Christoph Schweigert +1
Recently, large degeneracy based on product eigenstates has been found in spin ladders, kagome-like lattices, and motif magnetism, connected to spin liquids, anyonic phases, and qu…
Quantum spin helices more stable than the ground state: onset of helical protection
Stefan Kühn, Felix Gerken, Lena Funcke +4
Topological magnetic structures are promising candidates for resilient information storage. An elementary example are spin helices in one-dimensional easy-plane quantum magnets. To…
Unique Signatures of Topological Phases in Two-Dimensional THz Spectroscopy
Felix Gerken, Thore Posske, Shaul Mukamel +1
We develop a microscopic theory for the two-dimensional spectroscopy of one-dimensional topological superconductors. We consider a ring geometry as a realization of the Kitaev chai…