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30 papers · 1 filter
Random interval homeomorphisms
Lluís Alsedà, Michał Misiurewicz
We investigate homeomorphisms of a compact interval, applied randomly. We consider this system as a skew product with the two-sided Bernoulli shift in the base. If on the open inte…
Yangian characters and classical W-algebras
A. I. Molev, E. E. Mukhin
The Yangian characters (or q-characters) are known to be closely related to the classical W-algebras and to the centers of the affine vertex algebras at the critical level. We make…
Extensions of real numbers using coset groups
Horia I. Petrache
Extensions of real numbers in more than two dimensions, in particular quaternions and octonions are finding applications in physics due to the fact that they naturally capture cert…
Potential mechanisms for imperfect synchronization in parkinsonian basal ganglia
Choongseok Park, Leonid Rubchinsky
Neural activity in the brain of parkinsonian patients is characterized by the intermittently synchronized oscillatory dynamics. This imperfect synchronization, observed in the beta…
Correlation enhanced phase sensitive Raman scattering in atomic vapors
Chun-Hua Yuan, L. Q. Chen, Z. Y. Ou +1
We theoretically propose a method to enhance Raman scattering by injecting a seeded light field which is correlated with the initially prepared atomic spin wave. Such a light-atom…
Efficient Raman Frequency Conversion by Feedbacks of Pump and Stokes Fields
Bing Chen, Kai Zhang, Chun-Hua Yuan +5
We experimentally demonstrate efficient Raman conversion to respective Stokes and anti-Stokes fields in both pulsed and continuous modes with a Rb-87 atomic vapor cell. The convers…