搜索结果: 1-15 共查到“理学 instantons”相关记录17条 . 查询时间(0.078 秒)
Calabi-Yau Manifolds, Hermitian Yang-Mills Instantons and Mirror Symmetry
Calabi-Yau manifold Hermitian Yang-Mills instanton Mirror symmetry
2011/9/30
Abstract: We formulate six-dimensional Euclidean gravity as SU(4)=SO(6) Yang-Mills gauge theory. For that purpose we devise a six-dimensional version of the 't Hooft symbols which realizes the isomorp...
Thin instantons in G_2-manifolds and Seiberg-Witten invariants
G_2-manifolds and Seiberg-Witten invariants Differential Geometry
2011/9/1
Abstract: For two nearby disjoint coassociative submanifolds C and C' in a G_2-manifold, we construct thin instantons with boundaries lying on C and C' from regular J-holomorphic curves in C. We expla...
The Resurgence of Instantons in String Theory
Instantons Resurgent Analysis Topological and Minimal Strings Matrix Models
2011/7/7
Nonperturbative effects in string theory are usually associated to D-branes. In many cases it can be explicitly shown that D-brane instantons control the large-order behavior of string perturbation th...
The Resurgence of Instantons in String Theory
Instantons Resurgent Analysis Topological and Minimal Strings Matrix Models
2011/7/29
Abstract: Nonperturbative effects in string theory are usually associated to D-branes. In many cases it can be explicitly shown that D-brane instantons control the large-order behavior of string pertu...
Instantons on ALE spaces and Super Liouville Conformal Field Theories
ALE spaces Super Liouville Conformal Field Theories Algebraic Geometry
2011/7/28
Instantons on ALE spaces and Super Liouville Conformal Field Theories.
Instantons, Quivers and Noncommutative Donaldson-Thomas Theory
Instantons Quivers Noncommutative Donaldson-Thomas Theory
2011/3/2
We construct noncommutative Donaldson{Thomas invariants associated with abelian orbifold
singularities by analysing the instanton contributions to a six-dimensional topological gauge
theory.
We study instanton partition functions for N = 2 superconformal Sp(1) and SO(4) gauge theories. We find that they agree with the corresponding U(2) instanton partitions functions only after a non-triv...
In this paper, we classify and construct five-dimensional black holes on gravitational instantons in vacuum Einstein gravity, with RxU(1)xU(1) isometry. These black holes have spatial backgrounds whi...
In this paper, we classify and construct five-dimensional black holes on gravitational instantons in vacuum Einstein gravity, with R × U(1) × U(1) isometry. These black holes have
spatial backgrounds...
Quantum 't Hooft loops of SYM N=4 as instantons of YM_2 in dual groups SU(N) and SU(N)/Z_N
Quantum 't Hooft loops SYM N=4 YM_2
2010/12/22
A relation between circular 1/2 BPS 't Hooft operators in 4d N=4 SYM and instantonic solutions in 2d Yang-Mills theory (YM_2) has recently been conjectured. Localization indeed predicts that those 't ...
Instantons, concordance, and Whitehead doubling
knot concordance Chern-Simons instanton Whitehead double
2010/12/14
We use moduli spaces of instantons and Chern-Simons invariants of flat connections to prove that the Whitehead doubles of (2, 2n − 1) torus knots are independent in the smooth knot concordance g...
Chern-Simons invariants, SO(3) instantons, and Z/2-homology cobordism
Chern-Simons invariants SO(3) instantons Z/2-homology cobordism
2010/12/14
We review the SO(3) instanton gauge theory of Fintushel and Stern and recast it in the context of 4-manifolds with cylindrical ends. Appli-cations to the Z/2 homology cobordism group of Z/2 homology 3...
Chaotic instantons and enhancement of tunneling in kicked double-well system with time-reversal symmetry
time-reversal symmetry Chaotic instantons dynamical tunneling
2010/4/2
Chaotic instanton approach is used to describe dynamical tunneling in kicked double well system. Effective Hamiltonian for the kicked system is obtained using matrix expansion formula for operator exp...
Instantons revisited: dynamical tunnelling and resonant tunnelling
Tunnelling dynamical tunnelling resonant tunnelling instantons semiclassical methods Wick rotation complex time
2010/4/8
Starting from trace formulae for the tunnelling splittings (or decay rates) analytically continued in the complex time domain, we obtain explicit semiclassical expansions in terms of complex trajector...
Instantons on General Noncommutative R4
instanton noncommutative gauge theory ADHM construction
2007/8/15
2002Vol.38No.6pp.691-697DOI:
Instantons on General Noncommutative R4
TIAN Yu1 and ZHU Chuan-Jie2,3
1 School of Physics, Peking University, Beijing 100871, China
2 Instit...