搜索结果: 1-8 共查到“理论物理学其他学科 symmetry”相关记录8条 . 查询时间(0.031 秒)
Symmetry energy of dense matter in holographic QCD
Symmetry energy dense matter holographic QCD
2010/12/24
We study the nuclear symmetry energy of dense matter using holographic QCD. To this end, we consider two flavor branes with equal quark masses in a D4/D6/D6 model. We find that at high density the sym...
Conformal symmetry breaking effects in gauge theories: new perturbative expressions
gauge theories perturbative expressions
2010/12/27
We propose a conjecture about the detailed structure of the conformal symmetry breaking term in the QCD generalization of Crewther relation and demonstrate its validity at the $\alpha_s^4$-level. We c...
Galilean symmetry in the effective theory of inflation: new shapes of non-Gaussianity
Galilean symmetry effective theory inflation
2010/12/23
We study the consequences of imposing an approximate Galilean symmetry on the Effective Theory of Inflation, the theory of small perturbations around the inflationary background. This approach allows...
Generalized Dirac bracket and the role of the Poincaré symmetry in the program of canonical quantization of fields 2
Generalized Dirac bracket the Poincaré symmetry
2010/12/27
In this article the methods of canonical analysis and quantization that were reviewed in the first part of the series are applied to the case of the Dirac field in the presence of electromagnetic int...
Axial Symmetry, Anti-BRST Invariance and Modified Anomalies
Axial Symmetry Anti-BRST Invariance Modified Anomalies
2010/12/23
It is shown that anti-BRST symmetries are quantized counterparts of local axial symmetries in gauge theories. An extended form of descent equations is worked out which yields a set of modified consist...
Classical Scaling Symmetry Implies Useful Nonconservation Laws
Nonconservation Laws symmetry dynamically
2010/4/2
Scaling symmetries of the Euler-Lagrange equations are generally not variational symmetries of the action and do not lead to conservation laws. Nevertheless, by an extension of Noether's theorem, scal...
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...
Solutions of the sDiff(2)Toda equation with SU(2) Symmetry
sDiff(2)Toda equation SU(2) Symmetry
2010/3/17
We present the general solution to the Plebanski equation for an H-space that admits Killing vectors for an entire SU(2) of symmetries, which is therefore also the general solution of the sDiff(2)Toda...