G
Guifre Vidal
Researcher at Perimeter Institute for Theoretical Physics
Publications - 189
Citations - 30506
Guifre Vidal is an academic researcher from Perimeter Institute for Theoretical Physics. The author has contributed to research in topics: Quantum entanglement & Renormalization. The author has an hindex of 65, co-authored 177 publications receiving 26238 citations. Previous affiliations of Guifre Vidal include California Institute of Technology & University of Queensland.
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Computable measure of entanglement
Guifre Vidal,Reinhard F. Werner +1 more
TL;DR: A measure of entanglement that can be computed effectively for any mixed state of an arbitrary bipartite system is presented and it is shown that it does not increase under local manipulations of the system.
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Three qubits can be entangled in two inequivalent ways
TL;DR: In this paper, it was shown that the Greenberger-Horne-Zeilinger state and a W state retain maximally bipartite entanglement when any one of the three qubits is traced out.
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Entanglement in quantum critical phenomena.
TL;DR: The results establish a precise connection between concepts of quantum information, condensed matter physics, and quantum field theory, by showing that the behavior of critical entanglement in spin systems is analogous to that of entropy in conformal field theories.
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Efficient classical simulation of slightly entangled quantum computations.
TL;DR: The results imply that a necessary condition for an exponential computational speedup is that the amount of entanglement increases with the size n of the computation, and provide an explicit lower bound on the required growth.
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Efficient simulation of one-dimensional quantum many-body systems.
TL;DR: Numerical analysis indicates that this method can be used, for instance, to efficiently compute time-dependent properties of low-energy dynamics in sufficiently regular but otherwise arbitrary one-dimensional quantum many-body systems.