40 citations · 222 across the 22 of their papers we have counts for
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Complete Boundary Phase Diagram of the Spin- XXZ Chain with Boundary Fields in the Anti-Ferromagnetic Gapped Regime
Parameshwar R. Pasnoori, Yicheng Tang, Junhyun Lee +3
We consider the spin XXZ chain with diagonal boundary fields and solve it exactly using Bethe ansatz in the gapped anti-ferromagnetic regime and obtain the complete p…
Quantum geometric bound for saturated ferromagnetism
Junha Kang, Taekoo Oh, Junhyun Lee +1
Despite its abundance in nature, predicting the occurrence of ferromagnetism in the ground state is possible only under very limited conditions such as in a flat band system with r…
Spin fractionalization and zero modes in the spin- XXZ chain with boundary fields
Parameshwar R. Pasnoori, Yicheng Tang, Junhyun Lee +3
In this work we argue that the antiferromagnetic spin XXZ chain in the gapped phase with boundary magnetic fields hosts fractional spin at its edges. Us…
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)…
Anomalous Quantum Oscillations in Spin-3/2 Topological Semimetal YPtBi
Hyunsoo Kim, Junhyun Lee, Halyna Hodovanets +3
The proposed high-spin superconductivity in the half-Heusler compounds changes the landscape of superconductivity research. While superconducting instability is possible only in sy…
Non-equilibrium steady state phases of the interacting Aubry-Andre-Harper model
Yongchan Yoo, Junhyun Lee, Brian Swingle
Here we study the phase diagram of the Aubry-Andre-Harper model in the presence of strong interactions as the strength of the quasiperiodic potential is varied. Previous work has e…