ua nt - p h / 06 02 05 3 v 4 12 J ul 2 00 6 Combinatorial approach to multipartite quantum systems : basic formulation

ua nt - p h / 06 02 05 3 v 2 1 3 Fe b 20 06 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...

ua 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...

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...

ua nt - p h / 02 07 00 6 v 1 1 J ul 2 00 2 DURABLE ENTANGLEMENT IN ATOMIC SYSTEMS

We discuss the generation and monitoring of durable atomic entangled state via Raman-type process, which can be used in the quantum information processing .

ua nt - p h / 04 07 06 4 v 1 8 J ul 2 00 4 Basics of Quantum Computation ( Part 1 )