Dynamics of System States in the Probability Representation of Quantum Mechanics.

A short description of the notion of states of quantum systems in terms of conventional probability distribution function is presented. The notion and the structure of entangled probability distributions are clarified. The evolution of even and odd Schrödinger cat states of the inverted oscillator is obtained in the center-of-mass tomographic probability description of the two-mode oscillator.

Entangled Qubit States and Linear Entropy in the Probability Representation of Quantum Mechanics.

The superposition states of two qubits including entangled Bell states are considered in the probability representation of quantum mechanics. The superposition principle formulated in terms of the nonlinear addition rule of the state density matrices is formulated as a nonlinear addition rule of the probability distributions describing the qubit states. The generalization of the entanglement properties to the case of superposition of two-mode oscillator states is discussed using the probability representation of quantum states.

[Decrease in time of transurethral laser litotripsy due to micro-drainage applications].

Introduction: The length of the operation to remove urinary concernments has a marked effect on the occurrence of postoperative complications in the time of the postoperative patients in the hospital. A significant factor contributing to the increase in time is the clouding of the fragmentation region, which increases the operation time and the number of complications.

Purpose: to develop a method of reducing the time of additional costs in contact lithotripsy with a holmium laser in order to reduce the risk of postoperative complications.

[The assesment of the fragmentation rate of urinary stones during the holmium laser lithotripsy].

Introduction: For rational planning of laser lithotripsy tactics, determination of pulse settings and laser modes, considering patients condition, stone size and composition as well as for more rationale planning of operation theatre loading and the use of high-technology equipment the knowledge of the time required for complete stone fragmentation is needed. It is still assessed subjectively base on the urologists own experience.

Aim: To determine the specific value of urinary stones mass decrease in order to evaluate exact time for complete fragmentation during holmium laser lithotripsy.