Zero-Dimensional PT-Symmetric Systems

Theorists at the QCN proposed that a model equation for the investigation of classical PT symmetry in zero dimensions, realized by a simple harmonic oscillator with matched time-dependent gain and loss that exhibits a transition from oscillatory to diverging motion. This behavior is similar to a transition from the exact to the broken PT phase in higher- dimensional PT-symmetric systems, with a phase diagram with alternating stable and unstable regions.

Outreach Archives

  • Friday, 5 April 2013

    In agreement with theoretical predictions by QCN researchers, a new highly efficient mode of thermal conduction was discovered and presently investigated, namely heat transport by magnetic excitations in quasi one- dimensional (1D) insulating materials ...


  • Friday, 5 April 2013

    QCN researchers have investigated numerically a two-dimensional SQUID metamaterial with and without quenched disorder and they have predicted multistability