Untwisting the Campbell diagrams of weakly anisotropic rotor systems

Kirillov, Oleg N.

doi:10.1088/1742-6596/181/1/012023

Search citation statements

Order By: Relevance

Paper Sections

Select...

Cyclic Parameter Variation1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2011

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is illustrated in figure 10, which shows the Riemann surfaces of the complex energy in the vicinity of these two EPs. The observed local behaviour resembles the 'doublecoffee-filter' scenario typical of unfolding a diabolic point into two EPs [16,30,[39][40][41]. Note that the apparent gaps in the Riemann surfaces are an artefact of the finite discretization of the parameter space.…”

Section: Cyclic Parameter Variationmentioning

confidence: 73%

Exceptional points in bichromatic Wannier–Stark systems

Elsen¹,

Rapedius²,

Witthaut³

et al. 2011

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

The resonance spectrum of a tilted periodic quantum system for a bichromatic periodic potential is investigated. For such a bichromatic Wannier-Stark system exceptional points, degeneracies of the spectrum, can be localized in parameter space by means of an efficient method for computing resonances. Berry phases and Petermann factors are analyzed. Finally the influence of a nonlinearity of the Gross-Pitaevskii type on the resonance crossing scenario is briefly discussed.Submitted to: J. Phys. B: At. Mol. Phys.

show abstract