量子引力的曲率两点真空相关

以平坦的Minkowski时空为背景，得到了任意坐标系和谐和坐标系中，n维GR引力和高导数引力的引力子自由传播子，求得了四种可能的曲率两点真空相关函数的首项.用微扰计算证明了曲率的两点真空相关函数在GR引力中为零，而在高导数引力中不为零.讨论了高导数引力与GR的引力子传播子、曲率相关函数的关系. 关键词： GR 高导数引力 引力子自由传播子 曲率真空相关函数 平移传播子     

引力子三顶点与引力自能的曲率激发

基于微扰展开,计算了联络场三点Green函数及单圈引力子自能对量子Wilson圈的贡献.结果表明,引力子三顶点及引力自能将使Einstein引力获得定域曲率的激发.     

Gravitational radiation of the Lemaître primordial atom

A non-traditional secondary quantizing of a strong gravitational field is realized. Using an earlier developed gravitational analog of the non-stationary perturbation theory it is shown that the Lema?tre primordial atom can generate hard gravitational radiation under spontaneous transitions of an effective Planckian particle in its discrete energy spectrum. Thus, the Lema?tre atom can be considered as a regular Big Bang model. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 59–65, February, 2009.     

The internal Schwarzschild-type solution in the field theory of gravity

We shown that the internal Schwarzschild-type solution in the field theory of gravity does not lead to infinite pressure inside the body as is the case in general relativity. This occurs as a result of the graviton rest mass because the time-dilation process terminates. __________ Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 147, No. 1, pp. 155–160, April, 2006.     

Perturbative quantum gravity in analogy with Fermi theory of weak interactions using bosonic tensor fields

In this paper we work in perturbative quantum gravity and we introduce a new effective model for gravity. Expanding the Einstein–Hilbert Lagrangian in graviton field powers we have an infinite number of terms. In this paper we study the possibility of an interpretation of more than three graviton interacting vertices as effective vertices of a most fundamental theory that contain tensor fields. Here we introduce a Lagrangian model named I.T.B. (intermediate-tensor-boson) where four gravitational pseudo-currents that contain two gravitons couple to three massive tensorial fields of ranks one, three and five, respectively. We show that the exchange of those massive particles reproduces, at low energy, the interacting vertices for four or more gravitons. In a particular version, the model contains a dimensionless coupling constant g and the mass M of the intermediate bosons as free parameters. The universal gravitational constant G_N is shown to be proportional to the inverse of mass squared of mediator fields, particularly . A foresighting choice of the dimensionless coupling constant could lower the energy scale where quantum gravity aspects show up.     

Gravitational Field Excitation from the First Term of Quantum Wilson Loop

In 4-dimensional R-gravity, using the linear and square terms of the expanding expression of the space-time connection, we calculate the possible curvature excitation （order k^4） of gravitational field, which is given by the first term of quantum Wilson loop （w） through two-point Green＇s function of the connection. At the same time using the tree diagram propagators of gravitons, the lowest order （k^4） correction to （w） is also calculated through the graviton self-energy in the term. Under the accuracy condition up to order k^4, we have obtained a complete expression of the excitation contributed from the leading term （w^（2））of （w）.     

Logunov's RTG in the Light of the Affine Connection Geometry

We study Logunov's theory of gravity from the standpoint of the affine connection geometry. Using the Lagrange–Hilbert variational method, we conclude that if a background metric can be introduced effectively, then the graviton mass must not be zero, but if the graviton mass is zero, then only the Christoffel connection is effective in the background metric.     

External Gravitational Field of a Nonstatic Spherically Symmetric Body in the Inertial Frame

We show that the external gravitational field of a nonstatic spherically symmetric source described by a diagonal metric tensor can only be static in the field theory of gravity. __________ Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 145, No. 3, pp. 425–432, December, 2005.     

矢引力子场论中无旋转不带电球体外时空中的零测地线运动

本文研究矢引力子场论中无旋转不带电球体外时空中的零测地线运动,得到了测地线方程的解析解,并与 Schwarzchild 时空中的零测地线运动作了比较。     

矢引力子场论中无旋转不带电球体外时空中的类时测地运动

本文研究了矢引力子场论中无旋转不带电球体外时空中的类时测地运动,得到了测地线方程的解析解,并与 Schwarzschild 时空中的测地运动作了比较。