69 citations · 165 across the 10 of their papers we have counts for
10 papers
Spontaneous vortex lattice due to orbital magnetization in valley polarized superconductors
Ammar Jahin, Shi-Zeng Lin
In this work, we study the spontaneous formation of a vortex lattice in two-dimensional valley polarized superconductors due to orbital magnetization. The screening of magnetic fie…
Chiral superconductivity from spin polarized Chern band in twisted MoTe
Cheng Xu, Nianlong Zou, Nikolai Peshcherenko +4
Superconductivity has been observed in twisted MoTe2 within the anomalous Hall metal parent state. Key signatures-including a fully spin/valley polarized normal state, anomalous Ha…
Enhanced Kohn-Luttinger topological superconductivity in bands with nontrivial geometry
Ammar Jahin, Shi-Zeng Lin
We study the effect of the electron wavefunction on Kohn-Luttinger superconductivity. The role of the wavefunction is encoded in a complex form factor describing the topology and g…
Theory of quasiparticle interference in Kitaev quantum spin liquids
Ammar Jahin, Hao Zhang, Gábor B. Halász +1
We study quasiparticle interference (QPI) in the Kitaev quantum spin liquid (QSL) for electrons tunneling into the QSL. The local tunneling conductance around a spin vacancy or loc…
Many-body higher-order topological invariant for -symmetric insulators
Ammar Jahin, Yuan-Ming Lu, Yuxuan Wang
Higher-order topological insulators in two spatial dimensions display fractional corner charges. While fractional charges in one dimension are known to be captured by a many-body b…
Higher-order topological superconductivity in monolayer WTe from repulsive interactions
Ammar Jahin, Yuxuan Wang
Superconductivity has been experimentally observed in monolayer WTe2, which in-plane field measurements suggested are of spin-triplet nature. Furthermore, it has been proposed that…
Fermionic approach to variational quantum simulation of Kitaev spin models
Ammar Jahin, Andy C. Y. Li, Thomas Iadecola +5
We use the variational quantum eigensolver (VQE) to simulate Kitaev spin models with and without integrability breaking perturbations, focusing in particular on the honeycomb and s…
Benchmarking variational quantum eigensolvers for the square-octagon-lattice Kitaev model
Andy C. Y. Li, M. Sohaib Alam, Thomas Iadecola +8
Quantum spin systems may offer the first opportunities for beyond-classical quantum computations of scientific interest. While general quantum simulation algorithms likely require…
Higher-order topological superconductors from Weyl semimetals
Ammar Jahin, Apoorv Tiwari, Yuxuan Wang
We propose that doped Weyl semimetals with four Weyl points are natural candidates to realize higher-order topological superconductors, which exhibit a fully gapped bulk while the…
Chiral Dirac Superconductors: Second-order and Boundary-obstructed Topology
Apoorv Tiwari, Ammar Jahin, Yuxuan Wang
We analyze the topological properties of a chiral superconductor for a two-dimensional metal/semimetal with four Dirac points. Such a system has been proposed to realize…