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The $|\Delta S|=1$ $\Lambda N$ interaction, responsible for the decay of hypernuclei, is studied by means of an Effective Field Theory where the long range physics is described by pion and kaon exchan...
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...
Deconfined criticality, runaway flow in the two-component scalar electrodynamics and weak first-order superfluid-solid transitions
The monte carlo model strong coupling mechanism weak coupling triple point coupling
2014/12/20
We perform a comparative Monte Carlo study of the easy-plane deconfined critical point (DCP) action and its short-range counterpart to reveal close similarities between the two models for intermediate...
Extrinsic curvature, geometric optics, and lamellar order on curved substrates
Two-dimensional layer model layer bend geometric constraints and physical effects
2014/12/19
When thermal energies are weak, two-dimensional lamellar structures confined on a curved substrate display complex patterns arising from the competition between layer bending and compression in the pr...
A reduced-order modeling approach to represent subgrid-scale hydrological dynamics for land-surface simulations: application in a polygonal tundra landscape
reduced-order modeling represent subgrid-scale hydrological dynamics
2014/12/19
Existing land surface models (LSMs) describe
physical and biological processes that occur over a wide
range of spatial and temporal scales. For example, biogeochemical and hydrological processes res...
Development of a tangent linear model (version 1.0) for the High-Order Method Modeling Environment dynamical core
Development of a tangent linear model the High-Order Method Modeling Environment dynamical core
2014/12/18
We describe development and validation of a tangent linear model for the High-Order Method Modeling Environment, the default dynamical core in the Community Atmosphere Model and the Community Earth Sy...
A 24-variable low-order coupled ocean–atmosphere model: OA-QG-WS v2
Low-order coupled ocean-atmosphere model the ocean atmosphere coupling atmospheric composition low-order ocean
2014/12/18
A new low-order coupled ocean–atmosphere model for midlatitudes is derived. It is based on quasi-geostrophic equations for both the ocean and the atmosphere, coupled through momentum transfer at the i...
A method to represent ozone response to large changes in precursor emissions using high-order sensitivity analysis in photochemical models
represent ozone response precursor emissions high-order sensitivity analysis photochemical models
2014/12/12
Photochemical grid models (PGMs) are used to simulate tropospheric ozone and quantify its response to emission changes. PGMs are often applied for annual simulations to provide both maximum concentrat...
Accuracy of the zeroth- and second-order shallow-ice approximation – numerical and theoretical results
second-order shallow-ice Accuracy of the zeroth
2014/12/12
In ice sheet modelling, the shallow-ice approximation (SIA) and second-order shallow-ice approximation
(SOSIA) schemes are approaches to approximate the solution of the full Stokes equations governin...
A semi-implicit, second-order-accurate numerical model for multiphase underexpanded volcanic jets
semi-implicit second-order-accurate numerical model
2014/12/12
An improved version of the PDAC (Pyroclastic
Dispersal Analysis Code, Esposti Ongaro et al., 2007) numerical model for the simulation of multiphase volcanic
flows is presented and validated fo...
Development of the high-order decoupled direct method in three dimensions for particulate matter: enabling advanced sensitivity analysis in air quality models
the high-order decoupled direct method three dimensions for particulate matter sensitivity analysis air quality models
2014/12/11
The high-order decoupled direct method in three dimensions for particulate matter (HDDM-3D/PM) has been implemented in the Community Multiscale Air Quality (CMAQ) model to enable advanced sensitivity ...
Unified parameterization of the planetary boundary layer and shallow convection with a higher-order turbulence closure in the Community Atmosphere Model: single-column experiments
the planetary boundary layer higher-order turbulence closure Community Atmosphere Model single-column experiments
2014/12/10
This paper describes the coupling of the Community Atmosphere Model (CAM) version 5 with a unified multi-variate probability density function (PDF) parameterization, Cloud Layers Unified by Binormals ...
Improved convergence and stability properties in a three-dimensional higher-order ice sheet model
Improved convergence stability properties i
2014/12/9
We present a finite difference implementation of
a three-dimensional higher-order ice sheet model.In comparison to a conventional centred difference discretisation it
enhances both numerical s...
New form of crystalline order holds promise for thermoelectric applications（图）
thermoelectric applications crystalline
2014/12/1
Since the 1850s scientists have known that crystalline materials are organized into 14 different basic lattice structures. However, a team of researchers from Vanderbilt University and Oak Ridge Natio...
An Investigation of the First-Order Mechanics of Polygonal Fault Networks of Utopia Planitia, Mars
the First-Order Mechanics Polygonal Fault Networks Utopia Planitia Mars
2014/10/22
Similar style and scale polygonal terrains are found in both the Northern Lowlands regions of the Acidalia Planitia (45oN, 15oW) and Elysium Planitia (36oN, 256oW) on Mars. However, this study is conf...