搜索结果: 1-14 共查到“理论物理学 Curvature”相关记录14条 . 查询时间(0.035 秒)
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...
Discrete Schemes for Gaussian Curvature and Their Convergence
Discrete Gaussian curvature discrete mean curvature geometric
2012/8/7
In this paper, several discrete schemes for Gaussian curvature are sur-
veyed. The convergence property of a modi痚d discrete scheme for the
Gaussian curvature is proved. Furthermore, a new discrete ...
Constant curvature solutions of Grassmannian sigma models: (1) Holomorphic solutions
Sigma models Mathematical Physics Holomorphic solutions
2012/4/18
We present a general formula for the Gaussian curvature of curved holomorphic 2-spheres in Grassmannian manifolds G(m, n). We then show how to construct such solutions with constant curvature. We also...
All metrics have curvature tensors characterised by its invariants as a limit: the ε-property
curvature tensors ε-property General Relativity and Quantum Cosmology
2011/10/8
Abstract: We prove a generalisation of the $\epsilon$-property, namely that for any dimension and signature, a metric which is not characterised by its polynomial scalar curvature invariants, there is...
Full nonlinear growing and decaying modes of superhorizon curvature perturbations
Full nonlinear growing decaying modes
2010/12/27
We clarify the behavior of curvature perturbations in a nonlinear theory in case the inflaton temporarily stops during inflation. We focus on the evolution of curvature perturbation on superhorizon sc...
All Bulk and Boundary Unitary Cubic Curvature Theories in Three Dimensions
All Bulk and Boundary Unitary Cubic Curvature Theories Three Dimensions
2010/12/23
We construct all the bulk and boundary unitary cubic curvature parity invariant gravity theories in three dimensions in (anti)-de Sitter spaces. For bulk unitarity, our construction is based on the p...
Algebraic classification of spacetimes using discriminating scalar curvature invariants
Algebraic classification of spacetimes discriminating scalar curvature invariants
2010/12/27
The Weyl and Ricci tensors can be algebraically classified in a Lorentzian spacetime of arbitrary dimensions using alignment theory. Used in tandem with the boost weight decomposition and curvature op...
Graphene as a quantum surface with curvature-strain preserving dynamics
Graphene preserving dynamics
2010/11/19
We discuss how the curvature and the strain density of the atomic lattice generate the quantization of graphene sheets as well as the dynamics of geometric quasiparticles propagating along the constan...
Curvature of the QCD phase transition line in a finite volume
Curvature QCD phase transition line finite volume
2011/1/14
The curvature which characterizes the QCD phase transition at finite temperature and small
values of the chemical potential is accessible to lattice simulations. The results for this quantity which h...
Observational constraints on Chaplygin cosmology in a braneworld scenario with induced gravity and curvature effect
Cosmology Dark energy -Cosmology theory- Cosmology Observations
2010/12/21
We study cosmological dynamics and late-time evolution of an extended induced grav-ity braneworld scenario. In this scenario, curvature effects are taken into account via the
Gauss-Bonnet term in the...
Curvature(s) of a light wavefront in a weak gravitational field
Ray tracing Light wavefront Post-Newtonian formalism Numerical Relativ-ity
2010/3/17
The geometry of a light wavefront evolving from a flat wavefront under the action of weak gravity field in the 3-space associated to a post-Newtonian relativistic spacetime, is studied numerically by ...
Geometric Phase, Curvature, and Extrapotentials in Constrained Quantum Systems
Geometric Phase Curvature Extrapotentials Constrained Quantum Systems
2010/10/15
We derive an effective Hamiltonian for a quantum system constrained to a submanifold (the
constraint manifold) of configuration space (the ambient space) by an infinite restoring force. We pay specia...
2005Vol.43No.4pp.604-606DOI:
Vortex of Fluid Field as Viewed from Curvature
LIU Shi-Da, SHI Shao-Ying, LIU Shi-Kuo, FU Zun-Tao, LIANG Fu-Ming, and XIN Guo-Jun
School of...
Solitary Wave and Wave Front as Viewed From
Curvature
curvature solitary waves wave front homoclinic orbit
2007/8/15
2004Vol.42No.6pp.814-816DOI:
Solitary Wave and Wave Front as Viewed From
Curvature
LIU Shi-Kuo, FU Zun-Tao, LIU Shi-Da, LIANG Fu-Ming, and XIN Guo-Jun
School of Physics,...