247 research outputs found
The quantum approach to human reasoning does explain the belief-bias effect
Based on the ideas of quantum physics and dual-process theory of human
reasoning that takes into account two primary mechanisms of reasoning : 1)
deductive rational thinking and 2) intuitive heuristic judgment, we proposed
the "quantum" approach to practical human logic that allows one to specify the
most distinctive peculiarities in activity of two reasoning systems mentioned
above and in addition to describe phenomenologically well-established
experimentally belief-bias effect
On the relationship between quantum entanglement and classical synchronization in open systems
We propose a simple model of classical open system consisting of two
subsystems all stationary states of which correspond to phase synchronization
between the subsystems. The model is generalized to quantum systems in a
finite-dimensional Hilbert space. The analysis of the simplest two qubit
version of the quantum model shows that all its stationary states are
nonseparable.Comment: 7 page
The Discrete-Continuous Logic and its possible quantum realizations
We propose a new version of generalized probabilistic propositional logic,
namely, discrete-continuous logic (DCL) in which every generalized proposition
(GP) is represented as 2x2 nondiagonal positive matrix with unit trace. We
demonstrate that on the set of propositions of this kind one can define both
the discrete logical operations (connectives) such as negation and strong
logical disjunction and in addition one parameter group of continuous
operations (logical rotations). We prove that an arbitrary classical
proposition (which in this logic is represented by the purely diagonal matrix)
can be considered as the result of strong disjunction of two identical GP. This
fact gives one a good reason to presume the DCL as a prime logical substructure
underlying to ordinary propositional logic, which is recorded by our
consciousness. We believe that proposed version of DCL will find many
applications both in physics (quantum logic) and also in cognitive sciences
(mental imagery) for better understanding of the pecular nature of mental brain
operations.Comment: 6 pages, no figure
Quasithermodynamic Representation of the Pauli Markov equation and their possible applications
We demonstrate that the extensive class of open Markov quantum systems
describing by the Pauli master equation can be represented in so- called
quasithermodynamic form .Such representation has certain advantages in many
respects for example it allows one to specify precisely the parameter region in
which the relaxation of the system in question to its stationary state occurs
monotonically.With a view to illustrate possible applications of such
representation we consider concrete Markov model that has in our opinion
self-dependent interest namely the explanation of important and well
established by numerous experiments the Yerkes-Dodson law in psychologyComment: 5 page
Unified Statistical Description of Quasithermodynamic Systems in and out of Equilibrium
We propose the method of statistical description of broad class of dynamic
systems (DS) whose equations of motion are determined by two state depending
functions: 1) "energy" - the quantity which conserves in time and 2) "entropy"
- the quantity which does not decrease in time. It is demonstrated that the
behavior of such systems in the equilibrium state reduces to the thermodynamic
lows in particular the Le Chatelier principle is satisfed and so on. Taking
into account the interaction system of interest with ergometer - the device
which continuously measures its energy one can possible to find the system
distribution function in arbitrary non-equilibrium stationary state (NESS).
Some general relations for mean values of certain quantities in NESS which can
be compared with experimental data are obtained.Comment: 11 page
On the statistical description of classical open systems with integer variables by the Lindblad equation
We propose the consistent statistical approach to consider a wide class of
classical open systems whose states are specified by a set of positive
integers(occupation numbers).Such systems are often encountered in physics,
chemistry, ecology, economics and other sciences.Our statistical method based
on ideas of quantum theory of open systems takes into account both discreteness
of the system variables and their time fluctuations - two effects which are
ignored in usual mean field dynamical approach.The method let one to calculate
the distribution function and (or)all moments of the system of interest at any
instant.As descriptive examples illustrating the effectiveness of the method we
consider some simple models:one relating to nonlinear mechanics,and others
taken from population biology .In all this examples the results obtained by the
method for large occupation numbers coincide with results of purely dynamical
approach but for small numbers interesting differences and new effects
arise.The possible observable effects connected with discreteness and
fluctuations in such systems are discussed.Comment: 6 page
Quantum theory as a tool for the description of simple psychological phenomena
We propose the consistent statistical approach for the quantitative
description of simple psychological phenomena using the methods of quantum
theory of open systems (QTOS). Taking as the starting point the K. Lewin's
psychological field theory we show that basic concepts of this theory can be
naturally represented in the language of QTOS. In particular provided that all
stimuli acting on psychological system (that is individual or group of
interest) are known one can associate with these stimuli corresponding
operators and after that to write down the equation for evolution of density
matrix of the relevant open system which allows one to find probabilities of
all possible behavior alternatives. Using the method proposed we consider in
detail simple model describing such interesting psychological phenomena as
cognitive dissonance and the impact of competition among group members on its
unity.Comment: 5 page
The Characteristic Noise Induced by the Continious Measurements in Classical Open Systems
We proposed the modified version of quantum-mechanical theory of continuous
measurements for the case of classical open systems. In our approach the
influence of measurement on evolution of distribution function of an open
system is described by the Fokker-Planck equation of a special form. The
diffusion tensor of this equation is uniquely defined by a type of the measured
quantity. On the basis of the approach proposed the stationary states of the
linear dissipative systems, induced by measurements in them, are considered.
Also we demonstrate on the simple example, how in the conservative system,
consisting of noninteracting parts, measurement of the integral of motion
results in relaxation to the quasi-thermodynamic equilibrium between parts of
the system. The "temperature" of such state is determined by energy of the
system and by the mean value of measured integral of motion. PACS numbers:
03.65.Ta, 05.40.-aComment: 13 p., 0 fi
Quasithermodynamic Representation of the quantum master equations: its existence , advantages and applications
We propose a new representation for several quantum master equations in
so-called quasithermodynamic form. This representation (when it exists) let one
to write down dynamical equations both for diagonal and non-diagonal elements
of density matrix of the quantum system of interest in unified form by means of
nonequilibrium potential ("entropy") that is a certain quadratic function
depending on all variables describing the state. We prove that above
representation exists for the general Pauli master equation and for the
Lindblad master equation ( at least in simple cases ) as well. We discuss also
advantages of the representation proposed in the study of kinetic properties of
open quantum systems particularly of its relaxation to the stationary state.Comment: 6 page
Three "quantum" models of competition and cooperation in interacting biological populations and social groups
In present paper we propose the consistent statistical approach which
appropriate for a number of models describing both behavior of biological
populations and various social groups interacting with each other.The approach
proposed based on the ideas of quantum theory of open systems (QTOS) and allows
one to account explicitly both discreteness of a system variables and their
fluctuations near mean values.Therefore this approach can be applied also for
the description of small populations where standard dynamical methods are
failed. We study in detail three typical models of interaction between
populations and groups: 1) antagonistic struggle between two populations 2)
cooperation (or, more precisely, obligatory mutualism) between two species 3)
the formation of coalition between two feeble groups in their conflict with
third one that is more powerful . The models considered in a sense are mutually
complementary and include the most types of interaction between populations and
groups. Besides this method can be generalized on the case of more complex
models in statistical physics and also in ecology, sociology and other "soft'
sciences.Comment: 8 pages, 0 figure
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