ar X iv : c on d - m at / 0 30 50 15 v 1 1 M ay 2 00 3 Phase transitions , memory and frustration in a Sznajd - like model with synchronous updating
نویسنده
چکیده
Equally it is not unusual to come across door-to-door sale agents working in couples rather than on an individual basis. In democratic electoral campaigns, small groups (typically couples) of political party activists may visit, door-to-door, potential electors and seek to gain their votes. Trade union movements often try to coordinate their actions in order to strengthen their position against management than if everybody try to negotiate it alone.
منابع مشابه
ar X iv : h ep - l at / 9 30 50 16 v 1 2 0 M ay 1 99 3 FUB - HEP 9 / 93 May 4 , 1993
To further improve the performance of Monte Carlo simulations of first-order phase transitions we propose to combine the multicanonical approach with multigrid techniques. We report tests of this proposition for the d-dimensional Φ4 field theory in two different situations. First, we study quantum tunneling for d = 1 in the continuum limit, and second, we investigate first-order phase transitio...
متن کاملar X iv : m at h - ph / 0 50 50 58 v 1 2 0 M ay 2 00 5 Topology and Phase Transitions II . Entropy and Topology
In this second paper, we prove another necessity Theorem about the topological origin of phase transitions. The Main Theorem of the present paper is proved by crucially resorting to the Main Theorem of paper I. However, the new Theorem has a much broader validity domain because it is proved under the generic condition of existence of critical points of the potential VN . In fact, on the basis o...
متن کاملar X iv : c on d - m at / 0 10 54 35 v 1 2 2 M ay 2 00 1 On domain formation in non - instantaneous symmetry breaking phase transitions
In the framework of the Ginzburg-Landau harmonic potential approximation , we present a possible modeling of the time-dependence of the frequency of the order parameter mode suitable to account for the formation of correlated domains in non-instantaneous symmetry breaking phase transitions. An interesting spectrum of possibilities for the size and the lifetime of these domains emerges, which ap...
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Time-resolved optical measurements in (110)-oriented GaAs/AlGaAs quantum wells show a tenfold increase of the spin-relaxation rate as a function of applied electric field from 20 to 80 kV cm at 170 K and indicate a similar variation at 300 K, in agreement with calculations based on the Rashba effect. Spin relaxation is almost field-independent below 20 kV cm reflecting quantum well interface as...
متن کاملar X iv : c on d - m at / 9 41 00 16 v 1 6 O ct 1 99 4 PHASE TRANSITIONS OF FRUSTRATED XY SPINS IN TWO DIMENSIONS
The row model is used to study the commensurate-incommensurate (C-IC) and isotropic (FFTXY) transitions of the frustrated 2D XY model on the triangular lattice. New relevant variables clarify the physics of these transitions: phase and chiral variables are coupled so that spin waves generate long range polar interactions. The resulting dielectric constant diverges at the transition. A single tr...
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