f-symbols in Robertson-Walker space-time

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

f-symbols in Robertson-Walker space-times

In a Robertson-Walker space-time a spinning particle model is investigated and we show that in a stationary case, there exists a class of new structures called f-symbols which can generate reducible Killing tensors and supersymmetry algebras.

متن کامل

Non-Critical Strings in Robertson-Walker Space Time

I consider a D+1 dimensional nonlinear σ model based on a possible interpretation of the Liouville field as a physical time. The Weyl invariance of this theory gives us restrictions for the background fields and the parameters of the theory, e.g. for trivial background one obtains the known regions for the dimension of the space-time (≤1 or ≥25). For a Robertson-Walker space time a special solu...

متن کامل

Quantum Evolution of Scalar Elds in Robertson-walker Space-time

We study the 4 eld theory in a at Robertson-Walker space-time using the functional Schh odinger picture. We introduce a simple Gaussian approximation to analyze the time evolution of pure states and we establish the renor-malizability of the approximation. We also show that the energy-momentum tensor in this approximation is nite once we consider the usual mass and coupling constant renormaliza...

متن کامل

Quantum evolution of scalar fields in Robertson-Walker space-time

We study the λφ4 field theory in a flat Robertson-Walker space-time using the functional Schödinger picture. We introduce a simple Gaussian approximation to analyze the time evolution of pure states and we establish the renormalizability of the approximation. We also show that the energy-momentum tensor in this approximation is finite once we consider the usual mass and coupling constant renorm...

متن کامل

Friedmann-robertson-walker Cosmologies

Abstract. Electrodynamics for self-interacting scalar fields in spatially flat FriedmannRobertson-Walker space-times is studied. The corresponding one-loop field equation for the expectation value of the complex scalar field in the conformal vacuum is derived. For exponentially expanding universes, the equations for the Bogoliubov coefficients describing the coupling of the scalar field to grav...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Open Physics

سال: 2005

ISSN: 2391-5471

DOI: 10.2478/bf02475589