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Excited cosmic strings with superconducting currents (2017)
Journal Article
Hartmann, B., Michel, F., & Peter, P. (2017). Excited cosmic strings with superconducting currents. Physical Review D, 96(12), Article 123531. https://doi.org/10.1103/physrevd.96.123531

We present a detailed analysis of excited cosmic string solutions that possess superconducting currents. These currents can be excited inside the string core, and—if the condensate is large enough—can lead to the excitations of the Higgs field. Next... Read More about Excited cosmic strings with superconducting currents.

Assessing degrees of entanglement of phonon states in atomic Bose gases through the measurement of commuting observables (2017)
Journal Article
Robertson, S., Michel, F., & Parentani, R. (2017). Assessing degrees of entanglement of phonon states in atomic Bose gases through the measurement of commuting observables. Physical Review D, 96(4), Article 045012. https://doi.org/10.1103/physrevd.96.045012

We show that measuring commuting observables can be sufficient to assess that a bipartite state is entangled according to either nonseparability or the stronger criterion of “steerability.” Indeed, the measurement of a single observable might reveal... Read More about Assessing degrees of entanglement of phonon states in atomic Bose gases through the measurement of commuting observables.