ua nt - p h / 06 02 05 3 v 2 1 3 Fe b 20 06 Combinatorial approach to multipartite quantum systems : basic formulation
نویسنده
چکیده
In this paper we give a method to associate a graph with an arbitrary density matrix referred to a standard orthonormal basis in the Hilbert space of a finite dimensional quantum system. We study the related issues like classification of pure and mixed states, Von-Neumann entropy, separability of multipartite quantum states and quantum operations in terms of the graphs associated with quantum states. In particular, we give a necessary and sufficient criterion for a m-partite quantum state to be separable.
منابع مشابه
ua nt - p h / 06 02 05 3 v 6 1 8 Ju n 20 07 Combinatorial approach to multipartite quantum systems : basic formulation
In this paper we give a method to associate a graph with an arbitrary density matrix referred to a standard orthonormal basis in the Hilbert space of a finite dimensional quantum system. We study the related issues like classification of pure and mixed states, Von-Neumann entropy, separability of multipartite quantum states and quantum operations in terms of the graphs associated with quantum s...
متن کاملua nt - p h / 06 02 05 3 v 5 9 J an 2 00 7 Combinatorial approach to multipartite quantum systems : basic formulation
In this paper we give a method to associate a graph with an arbitrary density matrix referred to a standard orthonormal basis in the Hilbert space of a finite dimensional quantum system. We study the related issues like classification of pure and mixed states, Von-Neumann entropy, separability of multipartite quantum states and quantum operations in terms of the graphs associated with quantum s...
متن کاملua nt - p h / 06 02 05 3 v 4 12 J ul 2 00 6 Combinatorial approach to multipartite quantum systems : basic formulation
In this paper we give a method to associate a graph with an arbitrary density matrix referred to a standard orthonormal basis in the Hilbert space of a finite dimensional quantum system. We study the related issues like classification of pure and mixed states, Von-Neumann entropy, separability of multipartite quantum states and quantum operations in terms of the graphs associated with quantum s...
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