52 citations · 110 across the 6 of their papers we have counts for
6 papers
Gaussian intrinsic entanglement
Ladislav Mišta, Richard Tatham
We introduce a cryptographically motivated quantifier of entanglement in bipartite Gaussian systems called Gaussian intrinsic entanglement (GIE). The GIE is defined as the optimize…
Gaussian intrinsic entanglement: An entanglement quantifier based on secret correlations
Ladislav Mišta, Richard Tatham
Intrinsic entanglement (IE) is a quantity which aims at quantifying bipartite entanglement carried by a quantum state as an optimal amount of the intrinsic information that can be…
Nonexistence of entangled continuous-variable Werner states with positive partial transpose
Daniel McNulty, Richard Tatham, Ladislav Mišta
We address an open question about the existence of entangled continuous-variable (CV) Werner states with positive partial transpose (PPT). We prove that no such state exists by sho…
Entanglement Concentration with Quantum Non Demolition Hamiltonians
Richard Tatham, Natalia Korolkova
We devise and examine two procrustean entanglement concentration schemes using Quantum Non- Demolition (QND) interaction Hamiltonians in the continuous variable regime, applicable…
Nonclassical correlations in continuous-variable non-Gaussian Werner states
Richard Tatham, Ladislav Mišta, Gerardo Adesso +1
We study nonclassical correlations beyond entanglement in a family of two-mode non-Gaussian states which represent the continuous-variable counterpart of two-qubit Werner states. W…
Measurement-induced disturbances and nonclassical correlations of Gaussian states
Ladislav Mišta, Richard Tatham, Davide Girolami +2
We study quantum correlations beyond entanglement in two-mode Gaussian states of continuous variable systems, by means of the measurement-induced disturbance (MID) and its ameliora…