Quasi-bound states in continuum

Abstract

We report the prediction of quasi-bound states (resonant states with very long lifetimes) that occur in the eigenvalue continuum of propagating states for a wide region of parameter space. These quasi-bound states are generated in a quantum wire with two channels and an adatom, when the energy bands of the two channels overlap. A would-be bound state that lays just below the upper energy band is slightly destabilized by the lower energy band and thereby becomes a resonant state with a very long lifetime (a second QBIC lays above the lower energy band).

4 pages, 4figures, 1 table

References in corpus (6)

• Fano Resonance in a Quantum Wire with a Side-coupled Quantum Dot
• Bound states in continuum in an electron waveguide
• Bound states in the continuum in open Aharonov-Bohm rings
• Nonanalytic enhancement of the charge transfer from adatom to one-dimensional semiconductor superlattice and optical absorption spectrum
• Theory of Fano-Kondo effect of transport properties through quantum dots
• Strongly Coupled Matter-Field and Non-Analytic Decay Rate of Dipole Molecules in a Waveguide

Cited by in corpus (27)

• Quantum Routing of Single Photons with Cyclic Three-Level System
• Controlling Quasibound States in 1D Continuum Through Electromagnetic Induced Transparency Mechanism
• Controlling single-photon transport in waveguides with finite cross-section
• Bound States in the Continuum Realized in the One-Dimensional Two-Particle Hubbard Model with an Impurity
• Bound states, scattering states and resonant states in PT-symmetric open quantum systems
• Intrinsic Cavity QED and Emergent Quasi-Normal Modes for Single Photon
• Systems of coupled PT-symmetric oscillators
• Complex Energy Spectrum and Time Evolution of QBIC States in a Two-Channel Quantum wire with an Adatom Impurity
• Non-Hermitian tight-binding network engineering
• Non-Markovian dynamics revealed at the bound state in continuum
• Equivalence of the effective Hamiltonian approach and the Siegert boundary condition for resonant states
• Characteristic dynamics near two coalescing eigenvalues incorporating continuum threshold effects
• Probabilistic Interpretation of Resonant States
• Quantum decay in a topological continuum
• Integrated and Steerable Vortex Lasers using Bound States in Continuum
• Topology of multiple cross-linked Su-Schrieffer-Heeger chains
• Bound states in the continuum in a two-channel Fano-Anderson model
• Quantum decay and amplification in a non-Hermitian unstable continuum
• Embedded Energy State in an Open Semiconductor Heterostructure
• Quantum signal transmission through a single-qubit chain
• Intermittent decoherence blockade in a chiral ring environment
• Bound states in the Brillouin zone continuum
• Non-Hermitian interaction of a discrete state with a continuum
• General theory of constructing potential with bound states in the continuum
• Photonic Feshbach Resonance
• Dispersive bands of bound states in the continuum
• The non-Hermitian landscape of autoionization