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ANTONINO MESSINA

Polynomial method to study the entanglement of pure N-qubit states

  • Authors: Makela, H; Messina, A
  • Publication year: 2010
  • Type: Articolo in rivista (Articolo in rivista)
  • Key words: Entanglement; Meccanica quantistica; Polinomi
  • OA Link: http://hdl.handle.net/10447/65905

Abstract

We present a mapping which associates pure N-qubit states with a polynomial. The roots of the polynomial characterize the state completely. Using the properties of the polynomial we construct a way to determine the separability and the number of unentangled qubits of pure N-qubit states.