搜索结果: 16-30 共查到“物理学 phase transitions”相关记录46条 . 查询时间(0.136 秒)
Simulation of structural phase transitions in NiTi
Simulation of structural phase transitions NiTi
2010/11/24
By means of molecular-dynamics simulations, temperature driven diffusionless structural phase
transitions in equi- and nearly equiatomic ordered nickel-titanium alloys were investigated. For this pur...
Abelian and non-abelian anyons in integer quantum anomalous Hall effect and topological phase transitions via superconducting proximity effect
Abelian and non-abelian anyons integer quantum anomalous Hall effec topological phase transitions
2010/11/23
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 p...
Hierarchy of boundary driven phase transitions in multi-species particle systems
Hierarchy of boundary driven phase transitions multi-species particle systems
2010/11/23
Interacting systems with K driven particle species on a open chain or chains which are coupled at the ends to boundary reservoirs with fixed particle densities are considered. We classify discontinuou...
A simple protocol for the probability weights of the simulated tempering algorithm: applications to first-order phase transitions
simulated tempering first-order phase transitions eigenvalues of the transfer matrix Ising and lattice-gas models
2010/11/19
The simulated tempering (ST) is an important method to deal with systems whose phase spaces are hard to sample ergodically. However, it uses accepting probabilities weights which often demand involvin...
Thermal phase transitions of supersolids in the extended Bose-Hubbard model
Thermal phase transitions extended Bose-Hubbard model
2010/11/18
We investigate numerically the finite-temperature phase diagrams of the extended Bose-Hubbard
model in a two-dimensional square lattice. In particular, we focus on the melting of supersolid
phases o...
Solvation Effects in Phase Transitions in Soft Matter
Solvation Effects in Phase Transitions Soft Matter
2010/11/18
Phase transitions in polar binary mixtures can be drastically altered even by a small amount of salt. This is because the preferential solvation strongly depends on the ambient composition.
Symmetry Breaking Phase Transitions in ABJM Theory with a Finite U(1) Chemical Potential
Phase Transitions ABJM Theory Finite U(1) Chemical Potential
2010/12/21
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-reac...
Phase transitions for the cavity approach to the clique problem on random graphs
Phase transitions the cavity graphs
2010/11/17
We give a rigorous proof of two phase transitions for a disordered system designed to find large cliques inside Erdos random graphs. Such a system is associated with a conservative probabilistic cellu...
Numerical study of the phase transitions in the two-dimensional Z(5) vector model
Numerical study phase transitions two-dimensional Z(5) vector model
2011/1/14
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(...
Universal phase transitions of B1 structured stoichiometric transition-metal carbides
Universal phase transitions
2010/11/23
High-pressure phase transitions of B1 structured transition-metal carbides (TiC, ZrC, HfC, VC, NbC, TaC) were systematically researched by ab initio calculations. It was found that these carbides unde...
Photonic Josephson effect, phase transitions, and chaos in optomechanical systems
Photonic Josephson effect phase transitions chaos optomechanical systems
2010/10/20
Manifestations of quantum aspects on a macroscopic scale are supposed to bring new light on
our understanding of fundamental physics. In this paper we consider such issues among others by
analyzing ...
Statistically induced Phase Transitions: Turning Bosons smoothly via Anyons into Fermions
Phase Transitions Fermions
2010/10/27
Anyons { particles carrying fractional statistics that interpolate between bosons and fermions { have been conjectured to exist in low dimensional systems. In the context of the fractional quantum Hal...
Nonlinear thermotropic and thermo-optical behaviour of planar oriented textures in nematic liquid crystals at phase transitions
Liquid crystals Nematic Phase transitions Texture Optical transmission Optical birefringence
2010/6/30
Thermotropic, thermo-morphologic and thermo-optical properties of the planar oriented nematic liquid crystals have been investigated for large temperature interval and especially for the direct nemati...
Quantum entanglement in a many-body system exhibiting multiple quantum phase transitions
Quantum phase transitions Many body systems
2010/7/5
We investigate the quantum entanglement-related features of the many-body model of Plastino and Moszkowski [N. Cimento 47 (1978) 470]. This is an exactly solvable N-body, SU2 two-level model exhibitin...
Effect of current quark masses on quark phase transitions in supernovae
quark phase transition current quark mass supernova
2009/8/14
The current quark mass model is adopted to study the phase transition of two-flavor quark matter to more stable three-flavor quark matter in the whole core of a supernova. It shows that the timescale ...