Quantum discord of cosmic inflation: Can we show that CMB anisotropies are of quantum-mechanical origin?

نویسندگان
چکیده

برای دانلود رایگان 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

Inflation , quantum fields , and CMB anisotropies 1

Inflationary cosmology has proved to be the most successful at predicting the properties of the anisotropies observed in the cosmic microwave background (CMB). In this essay we show that quantum field renormalization significantly influences the generation of primordial perturbations and hence the expected measurable imprint of cosmological inflation on the CMB. However, the new predictions rem...

متن کامل

Search for Cosmic Strings in CMB Anisotropies

We have searched the 1st-year WMAP W-Band CMB anisotropy map for evidence of cosmic strings. We have set a limit of δ = 8πGμ/c < 8.2× 10 at 95% CL for statistical search for a significant number of strings in the map. We also have set a limit using the uniform distribution of strings model in the WMAP data with δ = 8πGμ/c < 7.34 × 10 at 95% CL. And the pattern search technique we developed here...

متن کامل

Space-time Evolution and CMB Anisotropies from Quantum Gravity

We propose an evolutional scenario of the universe which starts from quantum states with conformal invariance, passing through the inflationary era, and then makes transition to the conventional Einstein spacetime. The space-time dynamics is derived from the renormalizable higherderivative quantum gravity on the basis of a conformal gravity in four dimensions. Based on the linear perturbation t...

متن کامل

Quantum discord in quantum computation

Quantum discord is a measure of the quantumness of correlations. After reviewing its different versions and properties, we apply it to the questions of quantum information processing. First we show that changes in discord in the processed unentangled states indicate the need for entanglement in the distributed implementation of quantum gates. On the other hand, it was shown that zero system-env...

متن کامل

3 CMB , Quantum Fluctuations and the Predictive Power of Inflation

I comment on the predictive power of inflation and recent CMB measurements. When more than twenty years ago G. Chibisov and I were fortunate to discover that quantum fluctuations could be responsible for the large scale structure of the universe, we hardly thought it would be possible one day to verify this prediction experimentally. We wrote a paper we derived the spectrum of cosmological metr...

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: Physical Review D

سال: 2016

ISSN: 2470-0010,2470-0029

DOI: 10.1103/physrevd.93.023505