Nonequilibrium optical control of dynamical states in superconducting nanowire circuits.

ABSTRACT: Optical control of states exhibiting macroscopic phase coherence in condensed matter systems opens intriguing possibilities for materials and device engineering, including optically controlled qubits and photoinduced superconductivity. Metastable states, which in bulk materials are often associated with the formation of topological defects, are of more practical interest. Scaling to nanosize leads to reduced dimensionality, fundamentally changing the system's properties. In one-dimensional superconducting nanowires, vortices that are present in three-dimensional systems are replaced by fluctuating topological defects of the phase. These drastically change the dynamical behavior of the superconductor and introduce dynamical periodic long-range ordered states when the current is driven throu

SUBMITTER: Madan I 

PROVIDER: S-EPMC5903898 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature