2 citations · 2 across the 6 of their papers we have counts for
6 papers
Quantum-Geometric Length Scale for Long-distance Squeezing in Bosonic Bogoliubov Systems
Sonu Verma, Sangmo Cheon, Myung-Joong Hwang +1
Multimode squeezing is a key resource for continuous-variable quantum technologies, but its spatial range in bosonic lattices is usually tied to dispersive propagation. Here we sho…
Boundary-Driven Complex Brillouin Zone in Non-Hermitian Electric Circuits
Yung Kim, Sonu Verma, Minwook Kyung +5
Complex-valued physical quantities, often non-conserved, represent key phenomena in non-Hermitian systems such as dissipation and localization. Recent advancements in non-Hermitian…
Non-Bloch band theory of sub-symmetry-protected topological phases
Sonu Verma, Moon Jip Park
Bulk-boundary correspondence (BBC) of symmetry-protected topological (SPT) phases relates the non-trivial topological invariant of the bulk to the number of topologically protected…
Eigenstate switching of topologically ordered states using non-Hermitian perturbations
Cheol Hun Yeom, Beom Hyun Kim, Moon Jip Park
Topologically ordered phases have robust degenerate ground states against the local perturbations, providing a promising platform for fault-tolerant quantum computation. Despite of…
PT-symmetric Non-Hermitian Hopf Metal
Seik Pak, Cheol Hun Yeom, Sonu Verma +1
Hopf insulator is a representative class of three-dimensional topological insulators beyond the standard topological classification methods based on K-theory. In this letter, we di…
Collective non-Hermitian skin effect: Point-gap topology and the doublon-holon excitations in non-reciprocal many-body systems
Beom Hyun Kim, Jae-Ho Han, Moon Jip Park
Open quantum systems provide a plethora of exotic topological phases of matter that has no Hermitian counterpart. Non-Hermitian skin effect, macroscopic collapse of bulk states to…