搜索结果: 1-15 共查到“理论物理学 phase transitions”相关记录21条 . 查询时间(0.803 秒)
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...
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...
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.
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...
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...
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...
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...
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...
New Phase Transitions in Optimal States for Memory Channels
New Phase Transitions Optimal States Memory Channels
2010/4/8
We investigate the question of optimal input ensembles for memory channels and construct a rather large class of Pauli channels with correlated noise which can be studied analytically with regard to t...
Electrical Neutrality and Symmetry Restoring Phase Transitions at High Density in a Two-Flavor Nambu-Jona-Lasinio Model
normal quark matter electrical neutrality Nambu-Jona-Lasinio model high
density chiral symmetry restoring first and second order phase transitions
2007/8/15
2007Vol.47No.6pp.1081-1087DOI:
Electrical Neutrality and Symmetry Restoring Phase Transitions at High Density in a Two-Flavor Nambu-Jona-Lasinio Model
WANG Xiao-Ming and ZHOU Bang...
Phase Transitions Induced by Top-Priority of Randomization
traffic flow cellular automaton phase transition relaxation time order
parameter
2007/8/15
2007Vol.47No.3pp.499-502DOI:
Phase Transitions Induced by Top-Priority of Randomization
WEI Yan-Fang,1,3 GUO Si-Ling,1 and XUE Yu1,2
1 Institute of Physics Science and ...
Symmetry Restoring Phase Transitions at High Density in a 4D
Nambu-Jona-Lasinio Model with a Single Order Parameter
Nambu-Jona-Lasinio model symmetry restoring at high density gap
equation effective potential second- and first-order phase transition
2007/8/15
2003Vol.40No.6pp.669-674DOI:
Symmetry Restoring Phase Transitions at High Density in a 4D
Nambu-Jona-Lasinio Model with a Single Order Parameter
ZHOU Bang-Rong
Departmen...
Critical Analyses of Order Parameter and Phase Transitions at High Density in Gross-Neveu Model
Gross-Neveu model critical analyses of order
parameter gap equation effective potential symmetry restoration at high density first order and second order phase transition
2007/8/15
2003Vol.40No.1pp.67-72DOI:
Critical Analyses of Order Parameter and Phase Transitions at High Density in Gross-Neveu Model
ZHOU Bang-Rong
Department of Physics, Graduate...