Oktel, M. Ö.Müstecaphoǧlu, Ö. E.2018-04-122018-04-1220041050-2947http://hdl.handle.net/11693/38230Ways in which a three-level system can be used to change the frequency-dependent magnetic permeability of an atomic gas were discussed. The resulting macroscopic electrodynamics was also discussed. The two levels were separated at optical frequencies while having a nonvanishing magnetic dipole matrix element. It was found that such level splittings require large external magnetic fields.EnglishComputation theoryElectric fieldsElectrodynamicsElectromagnetismFrequenciesMagnetic permeabilityRefractive indexVectorsDipole momentsFree spacePhotonic crystalsSplit ring resonatorsQuantum theoryReview10.1103/PhysRevA.70.053806