Boundary dynamics driven entanglement Articles uri icon

publication date

  • September 2014


  • 38


  • 47

International Standard Serial Number (ISSN)

  • 1751-8113

Electronic International Standard Serial Number (EISSN)

  • 1751-8121


  • We will show how to generate entangled states out of unentangled states on a bipartite system by means of dynamical boundary conditions. The auxiliary system is defined by a symmetric but not self-adjoint Hamiltonian, and we will also study the space of self-adjoint extensions of the bipartite system. We will show that only a small set of these extensions leads to separable dynamics, and we will characterize these extensions. Various simple examples illustrating this phenomenon are discussed; in particular, we will analyze the hybrid system consisting of a planar quantum rotor and a spin system under a wide class of boundary conditions.


  • boundary control; boundary generated entanglement; non-separable boundary conditions; self-adjoint extensions; topology change; global theory; quantum