搜索结果: 1-15 共查到“物理学 phase transitions”相关记录46条 . 查询时间(0.093 秒)
Researchers confirm decades-old theory describing principles of phase transitions
Researchers decades-old theory describing principles phase transitions
2016/11/29
New research conducted at the University of Chicago has confirmed a decades-old theory describing the dynamics of continuous phase transitions.The findings, published in the Nov. 4 issue of Science, p...
Weak First-Order Superfluid-Solid Quantum Phase Transitions
Zero the two-dimensional lattice model monte carlo simulation the Hamiltonian parameter space
2014/12/20
We study superfluid-solid zero-temperature transitions in two-dimensional lattice boson-spin models using worm-algorithm Monte Carlo simulations. We observe that such transitions are typically first o...
Superfluid-Superfluid Phase Transitions in a Two-Component Bose-Einstein Condensate
Hamiltonian parameters bosons optical lattice superfluid superfluids vacuum
2014/12/20
Depending on the Hamiltonian parameters, two-component bosons in an optical lattice can form at least three different superfluid phases in which both components participate in the superflow: a (strong...
Phase transitions in a three dimensional U(1)×U(1) lattice London superconductor: Metallic superfluid and charge-4e superconducting states
Three dimensional lattice superconductor condensation coupling pulse measurement the current current coupling
2014/12/18
We consider a three dimensional lattice U(1)×U(1) and [U(1)]N superconductors in the London limit with individually conserved condensates. The U(1)×U(1) problem, generically, has two types of intercom...
Structural phase transitions in multipole traps
Structural phase transitions multipole traps
2012/2/28
A small number of laser-cooled ions trapped in a linear radiofrequency multipole trap forms a hollow tube structure. We have studied, by means of molecular dynamics simulations, the structural transit...
Kinetics of Chiral Phase Transitions in Quark Matter
Kinetics Chiral Phase Transitions Quark Matter
2011/7/21
We study the kinetics of chiral transitions in quark matter using a microscopic framework (Nambu-Jona-Lasinio model) and a phenomenological model (Ginzburg-Landau free energy).
In this paper we discuss the possibility that chiral phase transitions, analogous to those of QCD, occur in the vicinity of a black hole.
Thermodynamic phase transitions and shock singularities
thermodynamic phase transitions shock singularities Mathematical Physics
2011/9/29
Abstract: We show that under rather general assumptions on the form of the entropy function, the energy balance equation for a system in thermodynamic equilibrium is equivalent to a set of nonlinear e...
Evidence is summarized attesting that the standard exchange field theory of ferromagnetism by Heisenberg has not been successful. It is replaced by the crystal field and a simple assumption that spin ...
Thermodynamic Geometry, Phase Transitions, and the Widom Line
Thermodynamic Geometry Phase Transitions the Widom Line
2011/9/13
We construct a novel approach, based on thermodynamic geometry, to characterize first-order phase transitions from a microscopic perspective,through the scalar curvature in the equilibrium thermodynam...
Phase transitions in the distribution of the Andreev conductance of superconductor-metal junctions with many transverse modes
Phase transitions superconductor-metal junctions transverse mode Statistical Mechanics
2011/7/27
Phase transitions in the distribution of the Andreev conductance of superconductor-metal junctions with many transverse modes.
We investigate the effect of adding a Chern-Simons term coupled to an axion field to SU(2) Einstein-Yang-Mills in a fixed 4D AdS/Schwarzschild background. We show that, as per the vanishing Chern-Sim...
Abelian and non-abelian anyons in integer quantum anomalous Hall effect and topological phase transitions via superconducting proximity effect
Abelian non-abelian anyons integer quantum anomalous Hall effect effect
2010/12/27
We study the quantum anomalous Hall effect described by a class of two-component Haldane models on square lattices. We show that the latter can be transformed into a pseudospin triplet p+ip-wave paire...
Symmetry Breaking Phase Transitions in ABJM Theory with a Finite U(1) Chemical Potential
ABJM Theory Finite U(1) Chemical Potential
2010/12/24
We consider the U(1) charged sector of ABJM theory at finite temperature, which corresponds to the Reissner-Nordstrom AdS black hole in the dual type IIA supergravity description. Including back-react...
Numerical study of the phase transitions in the two-dimensional Z(5) vector model
the phase transitions the two-dimensional Z(5) vector model
2011/1/7
We investigate the critical properties of the two-dimensional Z(5) vector model. For this purpose, we propose a new cluster algorithm, valid for Z(N) models with odd values of N. The two-dimensional Z...