ua nt - p h / 02 11 07 0 v 1 1 3 N ov 2 00 2 Numerical study of induced vortex tunneling

ua nt - p h / 02 11 05 0 v 1 1 1 N ov 2 00 2 Unitary Solutions to the Yang - Baxter Equation in Dimension Four

In this paper, we determine all unitary solutions to the Yang-Baxter equation in dimension four. Quantum computation motivates this study. This set of solutions will assist in clarifying the relationship between quantum entanglement and topological entanglement. We present a variety of facts about the Yang-Baxter equation for the reader unfamiliar with the equation.

ar X iv : q ua nt - p h / 04 11 17 2 v 1 2 3 N ov 2 00 4 Information and Entropy in Quantum Theory

ua nt - p h / 00 11 09 6 v 1 2 3 N ov 2 00 0 su ( 2 ) and su ( 1 , 1 ) displaced number states and their nonclassical properties

We study su(2) and su(1,1) displaced number states. Those states are eigenstates of density-dependent interaction systems of quantized radiation field with classical current. Those states are intermediate states interpolating between number and displaced number states. Their photon number distribution, statistical and squeezing properties are studied in detail. It is show that these states exhi...

ua nt - p h / 01 11 11 2 v 1 2 1 N ov 2 00 1 Management of the Angular Momentum of Light : Preparation of

We put forward schemes to prepare photons in multi-dimensional vector states of orbital angular momentum. We show realizable light distributions that yield prescribed states with finite or infinite normal modes. In particular, we show that suitable light vortex-pancakes allow the add-drop of specific vector projections. We suggest that such photons might allow the generation of engineered quNit...

ua nt - p h / 04 11 09 8 v 1 1 5 N ov 2 00 4 A class of 2 N × 2 N bound entangled states revealed by non - decomposable maps

We use some general results regarding positive maps to exhibit examples of non-decomposable maps and 2 ×2N , N ≥ 2, bound entangled states, e.g. non distillable bipartite states of N+N qubits.