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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...
What is the “Paradox of Phase Transitions?”
phase transitions scientific representation,emergence reduction thermodynamics statistical mechanics
2016/5/30
I present a novel approach to the recent scholarly debate that has arisen with respect to the philosophical import one should infer from scientific accounts of “Phase Transitions,” by appealing to a d...
Accurate Prediction of Phase Transitions in Compressed Sensing via a Connection to Minimax Denoising
Approximate Message Passing Lasso Group Lasso, Joint Sparsity, James- Stein, Minimax Risk over Nearly-Black Objects Minimax Risk of Soft Thresholding Minimax Risk of Firm Thresholding Minimax Shrinkage Nonconvex penalization State Evolution Total Variation Minimization Monotone Regression.
2015/8/21
Compressed sensing posits that, within limits, one can undersample a sparse signal and yet reconstruct it accurately. Knowing the precise limits to such undersampling is important both for theory and ...
Universality in Polytope Phase Transitions and Message Passing Algorithms
Nonlinear mapping symmetric random matrix spin glass theory approximate messaging algorithm
2015/8/21
We consider a class of nonlinear mappings FA;N in RN indexed by symmetric random matrices A 2 RNN with independent entries. Within spin glass theory, special cases of these mappings correspond to ite...
Gibbs Measures and Phase Transitions on Sparse Random Graphs
Random graphs Ising model Gibbs measures Phase transitions Spin models Local weak convergence
2015/8/20
Many problems of interest in computer science and information theory can be phrased in terms of a probability distribution over discrete variables associated to the vertices of a large (but finite) sp...
Analysis of phase transitions in the mean-field Blume-Emery-Griffiths model
Analysis phase transformation model the thermodynamics parameters define the model
2014/12/25
In this paper we give a complete analysis of the phase transitions in the mean-field Blume-Emery-Griffiths lattice-spin model with respect to the canonical ensemble, showing both a second-order, conti...
Complete analysis of phase transitions and ensemble equivalence for the Curie-Weiss-Potts model
Structure rotating model Potts model porter model
2014/12/25
Using the theory of large deviations, we analyze the phase transition structure of the Curie–Weiss–Potts spin model, which is a mean-field approximation to the nearest-neighbor Potts model. It is equi...
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...
Strain rate-induced phase transitions in an impact-hardening polymer composite
Impact - hardening polymer compound protective equipment material the mechanical test
2015/3/24
An impact-hardening polymer composite that is promising as a protective equipment material for its excellent performance and comfortable characteristics is shown. Falling weight impact experiments are...
Phase-transitions, criticality, and life's emergence
field-controlled colloids proto-metabolic cycle driving long-range correlation organic takeover phase-transition
2012/4/28
Critical-like characteristics in open living systems at each organizational level (from bio-molecules to ecosystems) indicate that non-equilibrium phase transitions into absorbing states lead to self-...
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...
Strong Electroweak Phase Transitions in the Standard Model with a Singlet
Strong Electroweak Phase Transitions Standard Model Singlet
2011/10/14
It is well known that the electroweak phase transition (EWPhT) in extensions of the Standard Model with one real scalar singlet can be first-order for realistic values of the Higgs mass. We revisit th...
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).