INSTANTON REPRESENTATION OF PLEBANSKI GRAVITY: EUCLIDEAN SIGNATURE MINISUPERSPACE SOLUTION

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

Is Minisuperspace Quantum Gravity Reliable?

We study minisuperspace quantum cosmology for a 2+1 dimensional Ads universe and find wave function, then we extend the model to a canonically quantized field theory for quantum gravity, i.e., a midisuperspace and solve quantum constraint the wave functional of the field theory in the saddle point approximation, we find that these two approach yield in different results.

متن کامل

Connecting SLE and minisuperspace Liouville gravity

We show that Fokker-Planck equation for chordal SLE process under a simple rescaling of the probability density can be traced to the minisuperspace Wheeler-de Witt equation for boundary operator in 2d Liouville gravity. Insertion of an operator, calculating SLE critical exponent, corresponds to adding matter contribution to WdW equation. This observation may be useful for understanding of why S...

متن کامل

Minisuperspace Model for Revised Canonical Quantum Gravity

We present a reformulation of the canonical quantization of gravity, as referred to the minisuperspace; the new approach is based on fixing a Gaussian (or synchronous) reference frame and then quantizing the system via the reconstruction of a suitable constraint; then the quantum dynamics is re-stated in a generic coordinates system and it becomes dependent on the lapse function. The analysis f...

متن کامل

Effective Nonlocal Euclidean Gravity

A nonlocal form of the effective gravitational action could cure the unboundedness of euclidean gravity with Einstein action. On sub-horizon length scales the modified gravitational field equations seem compatible with all present tests of general relativity and post-Newtonian gravity. They induce a difference in the effective Newton’s constant between regions of space with vanishing or nonvani...

متن کامل

Limit of Euclidean Quantum Gravity

Using the Ashtekar formulation, it is shown that the G N ewton → 0 limit of Euclidean or complexified general relativity is not a free field theory, but is a theory that describes a linearized self-dual connection propagating on an arbitrary anti-self-dual background. This theory is quantized in the loop representation and, as in the full theory, an infinite dimnensional space of exact solution...

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: Modern Physics Letters A

سال: 2012

ISSN: 0217-7323,1793-6632

DOI: 10.1142/s0217732312501040