227 citations · 2.2k across the 72 of their papers we have counts for
73 papers
Exact solution of a non-Hermitian -symmetric Heisenberg spin chain
Pradip Kattel, Parameshwar R. Pasnoori, Natan Andrei
We construct the exact solution of a non-Hermitian -symmetric isotropic Heisenberg spin chain with integrable boundary fields. We find that the system exhibits two ty…
Boundary Quantum Phase Transitions in the Spin Heisenberg Chain with Boundary Magnetic Fields
Parameshwar R. Pasnoori, Junhyun Lee, J. H. Pixley +2
We consider the spin Heisenberg chain with boundary magnetic fields and analyze it using a combination of Bethe ansatz and density matrix renormalization group (DMRG)…
Rise and fall of Yu-Shiba-Rusinov bound-states in charge conserving -wave one-dimensional superconductors
Parameshwar R. Pasnoori, Natan Andrei, Colin Rylands +1
We re-examine the problem of a magnetic impurity coupled to a superconductor focusing on the role of quantum fluctuations. We study in detail, a system that consists of a one-dimen…
Boundary-Induced Topological and Mid-Gap States in Charge Conserving One-Dimensional Superconductors
Parameshwar R. Pasnoori, Natan Andrei, Patrick Azaria
We investigate one-dimensional charge conserving, spin-singlet (SSS) and spin-triplet (STS) superconductors in the presence of boundary fields. In systems with Open Boundary Condit…
Multi-particle quantum walks and Fisher information in one-dimensional lattices
Xiaoming Cai, Hongting Yang, Hai-Long Shi +3
Recent experiments on quantum walks (QWs) of a single and two particles demonstrated subtle quantum statistics-dependent walks in one-dimensional (1D) lattices. However the roles o…
Many-body wavefunctions for quantum impurities out of equilibrium. II. Charge fluctuations
Adrian B. Culver, Natan Andrei
We extend the general formalism discussed in the previous paper [A. B. Culver and N. Andrei, Phys. Rev. B 103, 195106 (2021)] to two models with charge fluctuations: the interactin…