ar X iv : 1 10 8 . 05 78 v 1 [ qu an t - ph ] 2 A ug 2 01 1 Gaussian multipartite bound information
نویسنده
چکیده
We show the existence of Gaussian multipartite bound information which is a classical analog of Gaussian multipartite bound entanglement. We construct a tripartite Gaussian distribution from which no secret key can be distilled between any two parties yet it cannot be created by local operations and public communication. This demonstrates a close link between entanglement and secrecy in the domain of random Gaussian continuous variables and underlines the ability of quantum mechanics to develop concepts of classical information theory.
منابع مشابه
ar X iv : 0 70 8 . 29 64 v 1 [ qu an t - ph ] 2 2 A ug 2 00 7 General multipartite entangled states and complex projective variety
We discuss and investigate the geometrical structure of general multipartite states. In particular, we show that a geometrical measure of entanglement for general multipartite states can be constructed by the complex projective varieties defined by quadratic polynomials.
متن کاملar X iv : 0 70 8 . 24 05 v 1 [ qu an t - ph ] 1 7 A ug 2 00 7 PT - symmetry and Integrability ∗
We briefly explain some simple arguments based on pseudo Hermiticity, supersymmetry and PT -symmetry which explain the reality of the spectrum of some non-Hermitian Hamiltonians. Subsequently we employ PT -symmetry as a guiding principle to construct deformations of some integrable systems, the Calogero-Moser-Sutherland model and the Korteweg deVries equation. Some properties of these models ar...
متن کاملar X iv : 1 70 8 . 02 82 2 v 1 [ qu an t - ph ] 9 A ug 2 01 7 General implementation of arbitrary nonlinear quadrature phase gates
Petr Marek, ∗ Radim Filip, Hisashi Ogawa, Atsushi Sakaguchi, Shuntaro Takeda, Jun-ichi Yoshikawa, 3 and Akira Furusawa † Department of Optics, Palacký University, 17. listopadu 1192/12, 77146 Olomouc, Czech Republic Department of Applied Physics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan Quantum-Phase Electronics Center, School of Engineering,...
متن کامل