8 papers
Exact interlayer triplet-pairing eigenstates in the extended Hubbard model
F. X. Liu, Z. Song
-pairing symmetry generalizes the pairing mechanisms in superconductivity but is broken in the presence of interlayer interactions. In this work, we extend this approach to tri…
Boundary-dependent topological degeneracy in an Ising chain
E. S. Ma, Z. Song
The topological degeneracy is a characteristic of quantum phase diagram in an Ising chain with transverse field. We revisit the phase diagram at nonzero temperature of an Ising cha…
Condensate states in Fermi and Bose-Hubbard ladders
F. X. Liu, E. S. Ma, Z. Song
Although neither hardcore bosons nor fermions can occupy the same single-site state, they still obey different statistics, resulting in distinct many-particle quantum states, such…
Hilbert space fragmentation in quantum Ising systems induced by side coupling
E. S. Ma, Z. Song
We study Hilbert space fragmentation and quantum scars in quantum spin systems with Ising interactions. The system consists of two sets of quantum spins, A and B. As the parent sys…
Exceptional nodal rings emerging in spinful Rice-Mele chains
E. S. Ma, Z. Song
The Weyl exceptional nodal lines usually occur in 3D topological semimetals, but also emerge in the parameter space of 1D systems. In this work, we study the impact of dissipation…
Dynamic destruction of magnetic order in a quantum Ising chain with oscillating transverse field
E. S. Ma, Z. Song
We study the dynamic response of magnetic domain walls in low-lying excited states of an Ising chain to an oscillating transverse field. Based on the exact instantaneous eigenstate…