Gaussian entanglement of symmetric two-mode Gaussian states
نویسندگان
چکیده
منابع مشابه
Entanglement frustration for Gaussian states on symmetric graphs.
We investigate the entanglement properties of multimode Gaussian states, which have some symmetry with respect to the ordering of the modes. We show how the symmetry constrains the entanglement between two modes of the system. In particular, we determine the maximal entanglement of formation that can be achieved in symmetric graphs like chains, 2D and 3D lattices, mean field models and the plat...
متن کاملEntanglement of two-mode Gaussian states: characterization and experimental production and manipulation
A powerful theoretical structure has emerged in recent years on the characterization and quantification of entanglement in continuous-variable systems. After reviewing this framework, we will illustrate it with an original setup based on a type-II OPO with adjustable mode coupling. Experimental results allow a direct verification of many theoretical predictions and provide a sharp insight into ...
متن کاملEntanglement transformations of pure Gaussian states
G. Giedke, J. Eisert, J.I. Cirac, and M.B. Plenio 1 4. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart, Germany 2 Max-Planck–Institut für Quantenoptik, Hans-Kopfermann-Straße, D-85748 Garching, Germany 3 Institut für Physik, Universität Potsdam, Am Neuen Palais 10, D-14469 Potsdam, Germany 4 QOLS, Blackett Laboratory, Imperial College London, SW7 2BZ London...
متن کاملBipartite and Multipartite Entanglement of Gaussian States
In this chapter we review the characterization of entanglement in Gaus-sian states of continuous variable systems. For two-mode Gaussian states, we discuss how their bipartite entanglement can be accurately quantified in terms of the global and local amounts of mixedness, and efficiently estimated by direct measurements of the associated purities. For multimode Gaussian states endowed with loca...
متن کاملEntanglement Sharing: from Qubits to Gaussian States
It is a central trait of quantum information theory that there exist limitations to the free sharing of quantum correlations among multiple parties. Such monogamy constraints have been introduced in a landmark paper by Coffman, Kundu and Wootters, who derived a quantitative inequality expressing a trade-off between the couplewise and the genuine tripartite entanglement for states of three qubit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal Special Topics
سال: 2008
ISSN: 1951-6355,1951-6401
DOI: 10.1140/epjst/e2008-00731-x