搜索结果: 1-15 共查到“物理学其他学科 phase”相关记录22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
2016/11/3
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...
Purdue researchers observe phase transition thought impossible
Purdue researchers phase transition thought impossible
2015/10/26
An ultrapure material taken to pressures greater than that in the depths of the ocean and chilled to temperatures colder than outer space has revealed an unexpected phase transition that crosses two d...
The helical phase of chiral nematic liquid crystals as the Bianchi VII(0) group manifold
The helical phase chiral nematic liquid crystals the Bianchi VII(0) group manifold
2011/9/5
We show that the optical structure of the helical phase of a chiral nematic is naturally associated with the Bianchi V II0 group manifold, of which we give a full account. The Joets-Ribotta metric gov...
Advancements in the synthesis of faceted nanoparticles and colloids have spurred interest in the phase behavior of polyhedral shapes. Regular tetrahedra have attracted particular attention because the...
Fourier transform based iterative method for x-ray differential phase-contrast computed tomography
X-ray phase-contrast tomography, x-ray refractive index, iterative reconstruction,interior tomography
2011/6/24
Biological soft tissues encountered in clinical and pre-clinical imaging mainly consist of light element atoms, and their composition is nearly uniform with little density variation. Thus,x-ray attenu...
Phase transition in the Sznajd model with independence
Social systems Spin chain models Scaling phenomena in complex systems
2011/6/5
We propose a model of opinion dynamics which describes two major types of social influence - conformity and independence. Conformity in our model is described by the so called outflow dynamics (known ...
Thermally induced 0-pi phase transition in Josephson junctions through a ferromagnetic oxide film
Thermally induced 0-pi phase transition Josephson junctions through ferromagnetic oxide film
2010/10/29
We investigate the Josephson transport through a ferromagnetic oxide film, e.g., La$_2$BaCuO$_5$, theoretically. Using the recursive Green's function technique, we found the formation of a pi-junction...
Quantitative evaluation of defect-models in superconducting phase qubits
Quantitative evaluation defect-models superconducting phase qubits
2010/10/28
We use high-precision spectroscopy and detailed theoretical modelling to determine the form of the coupling between a superconducting phase qubit and a two-level defect. Fitting the experimental data ...
Variational cluster approach for strongly-correlated lattice bosons in the superfluid phase
Variational cluster approach strongly-correlated lattice bosons the superfluid phase
2010/10/20
We extend the variational cluster approach to deal with strongly-correlated lattice bosons in the superfluid phase. To this end, we reformulate the approach within a pseudoparticle formalism, whereby ...
Phase space spinor amplitudes for spin 1/2 systems
Phase space spinor amplitudes spin 1/2 systems
2010/10/17
The concept of phase space amplitudes for systems with continuous degrees of freedom is generalized to finite-dimensional spin systems. Complex amplitudes are obtained on both a sphere and a finite la...
Dispersion supported BB84 quantum key distribution using phase modulated light
PM-PM phase modulated light quantum key
2010/1/4
We propose and experimentally demonstrate that, contrary to what it was thought up to now, BB84 operation is feasible using the double phase modulator (PM-PM) configuration in frequency coded systems....
We study the adiabatic evolution of a two-level model in the presence of an external classical electric field. The coupling between the quantum model and the classical field is taken in the electric d...
Influence of Interaction Energy in Fluid-Fluid Phase Transitions on Langmuir Monolayers
Langmuir monolayers Phase transitions Lattice model
2006/9/30
A pure lattice model for Langmuir monolayers is presented where only nearest neighbor interactions are considered. The flexibility of hydrophobic tails laying on the surface is taken into account but ...
Dynamical Phase Transition in Vibrational Surface Modes
Dynamical phase transition Vibrational localized states Origin of frictional forces
2006/9/30
We consider the dynamical properties of a simple model of vibrational surface modes. We obtain the exact spectrum of surface excitations and discuss their dynamical features. In addition to the usuall...
Onset of Classical Behaviour After a Phase Transition
Classical Behaviour a Phase Transition
2005/6/30
We analyze the onset of classical behaviour in a scalar field after a continuous phase transition, in which the system-field, the long wavelength order parameter of the model, interacts with an enviro...