105 citations · 745 across the 28 of their papers we have counts for
18 papers · 1 filter
Topological study of a Bogoliubov-de Gennes system of pseudo spin- bosons with conserved magnetization in a honeycomb lattice
Hong Y. Ling, Ben Kain
We consider a Bogolibov-de Geenes (BdG) Hamiltonian, which is a non-Hermitian Hamiltonian with pseudo-Hermiticity, for a system of (pseudo) spin- bosons in a honeycomb lattice…
Selection Rule for Topological Amplifiers in Bogoliubov de Gennes Systems
Hong Y. Ling, Ben Kain
Dynamical instability is an inherent feature of bosonic systems described by the Bogoliubov de Geenes (BdG) Hamiltonian. Since it causes the BdG system to collapse, it is generally…
Analytical study of static beyond-Frohlich Bose polarons in one dimension
Ben Kain, Hong Y. Ling
Grusdt et al. [New J. Phys. 19, 103035 (2017)] recently made a renormalization group study of a one-dimensional Bose polaron in cold atoms. Their study went beyond the usual Frohli…
Hartree-Fock treatment of Fermi polarons using the Lee-Low-Pine transformation
Ben Kain, Hong Y. Ling
We consider the Fermi polaron problem at zero temperature, where a single impurity interacts with non-interacting host fermions. We approach the problem starting with a Frohlich-li…
Generalized Hartree-Fock-Bogoliubov Description of the Frohlich Polaron
Ben Kain, Hong Y. Ling
We adapt the generalized Hartree-Fock-Bogoliubov (HFB) method to an interacting many-phonon system free of impurities. The many-phonon system is obtained from applying the Lee-Low-…
Competing Orders in a Dipolar Bose-Fermi Mixture on a Square Optical Lattice: Mean-Field Perspective
Jasen A. Scaramazza, Ben Kain, Hong Y. Ling
We consider a mixture of a two-component Fermi gas and a single-component dipolar Bose gas in a square optical lattice and reduce it into an effective Fermi system where the Fermi-…