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ANTONINO MESSINA

N-qubit states as points on the Bloch sphere

  • Authors: Makela, H; Messina, A
  • Publication year: 2010
  • Type: Articolo in rivista (Articolo in rivista)
  • Key words: entanglement, density matrix
  • OA Link: http://hdl.handle.net/10447/53688

Abstract

We show how the Majorana representation can be used to express the pure states of an N-qubit system as points on the Bloch sphere. We compare this geometrical representation of N-qubit states with an alternative one, proposed recently by the present authors.