Towards Numerical and Analytical Studies of First Order Phase Transitions A
نویسندگان
چکیده
Discrete lattice simulations of a one-dimensional φ 4 theory coupled to an external heat bath are being carried out. Great care is taken to remove the effects of lattice discreteness and finite size and to establish the correct correspondence between simulations and the desired, finite-temperature continuum limit.
منابع مشابه
سیستمهای ناکام و همبسته الکترونی
Quantum phases and fluctuations in correlated electron systems with frustration and competing interactions are reviewed. In the localized moment case the S=1/2 J1 - J2 - model on a square lattice exhibits a rich phase diagram with magnetic as well as exotic hidden order phases due to the interplay of frustration and quantum fluctuations. Their signature in magnetocaloric quantities and the hig...
متن کاملThe Monotony Criterion for a Finite Size Scaling Analysis of Phase Transitions
We propose a new criterion to analyse the order of phase transitions within a finite size scaling analysis. It refers to response functions like order parameter susceptibilities and the specific heat and states different monotony behaviour in volume for first and second order transitions close to the transition point. The criterion applies to analytical and numerical studies of phase diagrams i...
متن کاملNUMERICAL SIMULATIONS OF THE PHASE TRANSITIONS IN CLUSTERS
We have studied the phase transitions in atomic clusters by molecular dynamics simulation, assuming Lennard-Jones interatomic pair potential. Calculations are performed by DAP parallel computer. The results are analyzed by simulating their orientational distribution plots (dot-plot), and neutron diffraction patterns. It is shown that all the main features of the bulk phase transitions are e...
متن کاملEarly Stages of Growth of Qcd and Electroweak Bubbles
The dynamical growth rate of bubbles nucleating in relativistic plasma in thermal first-order phase transitions is analyzed. The framework is a hydrodynamical model which consists of relativistic fluid and an order parameter field. The results of analytical approximations and numerical simulations coincide well.
متن کاملep - p h / 95 07 31 2 v 1 1 4 Ju l 1 99 5 DART - HEP - 95 / 03 July 1995 THERMAL MIXING OF PHASES : NUMERICAL AND ANALYTICAL STUDIES
The dynamics of phase transitions plays a crucial rôle in the so-called interface between high energy particle physics and cosmology. Many of the interesting results generated during the last fifteen years or so rely on simplified assumptions concerning the complex mechanisms typical of nonequilibrium field theories. In particular, whenever first order phase transitions are invoked, the metasta...
متن کامل