Exceptional points in atomic spectra.
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Summary
The resonances of the system are investigated and it is shown how exceptional points can be found by exploiting characteristic properties of the degeneracies, which are branch point singularities.
- Type
- article
- Published
- 2007-03-13
- Cited by
- 126
- References
- 30
- Access
- Open access
- OpenAlex
- https://openalex.org/W2013652535
- Semantic Scholar
- https://api.semanticscholar.org/CorpusID:18295948
Keywords
Physics, Spectral line, Gravitational singularity, Point (geometry), Hydrogen atom
References
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- Perturbation theory for linear operators
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- Ericson fluctuations in the chaotic ionization of the hydrogen atom in crossed magnetic and electric fields.
- Experimental observation of the topological structure of exceptional points.
- Repulsion of resonance states and exceptional points
- Two-body effects of the hydrogen atom in crossed electric and magnetic fields
- Rydberg atoms in external fields as an example of open quantum systems with classical chaos
- Quantum chaotic scattering in atomic physics: Ericson fluctuations in photoionization.
- On singular features of acoustic wave propagation in weakly dissipative anisotropic thermoviscoelasticity
- Three novel high-resolution nonlinear methods for fast signal processing
- Observation of a chiral state in a microwave cavity.
- Diffraction by volume gratings with imaginary potentials
- Avoided level crossing and exceptional points
- Rigorous method for computing photoabsorption cross sections from a basis-set expansion
- Transitional regions of finite Fermi systems and quantum chaos.
- The method of complex coordinate rotation and its applications to atomic collision processes
- LETTER TO THE EDITOR: Quantum manifestations of closed orbits in the photoexcitation scaled spectrum of the hydrogen atom in crossed fields
- Laser-induced degeneracies involving autoionizing states in complex atoms.
- Absorption and recurrence spectra of hydrogen in crossed electric and magnetic fields
Cited by
- Contrôle quantique adiabatique : technique de passage adiabatique parallèle et systèmes dissipatifs
- Exceptional points in atomic spectra and Bose-Einstein condensates
- Solvable Models on Noncommutative Spaces with Minimal Length Uncertainty Relations
- Exceptional points for parameter estimation in open quantum systems: analysis of the Bloch equations
- Signatures of exceptional points in the laser control of non-adiabatic vibrational transfer
- Finding and pinpointing exceptional points of an open quantum system
- Exceptional points in open quantum systems
- Armchair graphene nanoribbons: PT-symmetry breaking and exceptional points without dissipation
- Non-Hermitian exciton dynamics in a photosynthetic unit system.
- Harmonic inversion analysis of exceptional points in resonance spectra
- Fictitious-time wave-packet dynamics. II. Hydrogen atom in external fields
- Dissociation quenching using exceptional points
- Exceptional points in a microwave billiard with time-reversal invariance violation.
- Divergent Petermann factor of interacting resonances in a stadium-shaped microcavity
- Helium in chirped laser fields as a time-asymmetric atomic switch.
- Application of pseudo-Hermitian quantum mechanics to a complex scattering potential with point interactions
- Observation of PT-symmetry breaking in complex optical potentials.
- Coalescence of metastable states in chemical reactions: double poles of the scattering matrix and exceptional points
- Chirality of wavefunctions for three coalescing levels
- Spectral singularities and Bragg scattering in complex crystals
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