432 citations · 558 across the 3 of their papers we have counts for
5 papers · 1 filter
Quantum key distribution without reference frame alignment: Exploiting photon orbital angular momentum
Federico M. Spedalieri
We present a new implementation of the BB84 quantum key distribution protocol that employs a -dimensional Hilbert space spanned by spatial modes of the propagating beam that hav…
Detecting multipartite entanglement
Andrew C. Doherty, Pablo A. Parrilo, Federico M. Spedalieri
We discuss the problem of determining whether the state of several quantum mechanical subsystems is entangled. As in previous work on two subsystems we introduce a procedure for ch…
A complete family of separability criteria
Andrew C. Doherty, Pablo A. Parrilo, Federico M. Spedalieri
We introduce a new family of separability criteria that are based on the existence of extensions of a bipartite quantum state to a larger number of parties satisfying certain s…
Distinguishing separable and entangled states
Andrew C. Doherty, Pablo A. Parrilo, Federico M. Spedalieri
We show how to design families of operational criteria that distinguish entangled from separable quantum states. The simplest of these tests corresponds to the well-known Peres-Hor…
Local Deterministic Transformations of Three-Qubit Pure States
Federico M. Spedalieri
The properties of deterministic LOCC transformations of three qubit pure states are studied. We show that the set of states in the GHZ class breaks into an infinite number of disjo…