ar X iv : q ua nt - p h / 02 09 10 1 v 1 1 7 Se p 20 02 COVARIANT PHASE DIFFERENCE OBSERVABLES

ar X iv : q ua nt - p h / 02 06 11 6 v 1 1 8 Ju n 20 02 Five Lectures On Dissipative Master Equations

ar X iv : q ua nt - p h / 02 07 09 6 v 2 1 7 Se p 20 02 Measurement of qutrits

We proposed the procedure of measuring the unknown state of the three-level system – the qutrit, which was realized as the arbitrary polarization state of the single-mode biphoton field. This procedure is accomplished for the set of the pure states of qutrits; this set is defined by the properties of SU(2) transformations, that are done by the polarization transformers.

ar X iv : q ua nt - p h / 02 12 09 7 v 3 4 A ug 2 00 5 Parity Effects in Spin Decoherence

A. Melikidze, V. V. Dobrovitski, H. A. De Raedt, M. I. Katsnelson, and B. N. Harmon Kavli Institute for Theoretical Physics, University of California, Santa Barbara CA 93106, USA Ames Laboratory, Iowa State University, Ames IA 50011, USA 3 Applied Physics Computational Physics, Materials Science Centre, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands Uppsala Univers...

ar X iv : q ua nt - p h / 02 09 10 0 v 1 1 7 Se p 20 02 Coassociative grammar , periodic orbits and quantum

This work will be devoted to the quantisation of the classical Bernoulli random walk over Z. As this random walk is isomorphic to the classical chaotic dynamical system x 7→ 2x mod 1 with x ∈ [0, 1], we will explore the rôle of classical periodic orbits of this chaotic map in relation with a non commutative algebra associated with the quantisation of the Bernoulli walk. In particular we show th...

ar X iv : q ua nt - p h / 03 09 02 9 v 1 2 S ep 2 00 3 Rule ( 4 ) and Continuous Observation Richard

The effect of rule (4) on a series or parallel sequence of quantum mechanical steps is to insure that a conscious observer does not skip a step. This rule effectively places the observer in continuous contact with the system.