Is dark energy a consequence of quantum fluctuations?

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

Dark energy from primordial inflationary quantum fluctuations.

We show that current cosmic acceleration can be explained by an almost massless scalar field experiencing quantum fluctuations during primordial inflation. Provided its mass does not exceed the Hubble parameter today, this field has been frozen during the cosmological ages to start dominating the Universe only recently. By using supernovae data, completed with baryonic acoustic oscillations fro...

متن کامل

Dark energy as spacetime curvature induced by quantum vacuum fluctuations

Assuming that the vacuum expectation of the quantum vacuum energy-momentum is zero, I show that fluctuations give rise to a smooth curvature of spacetime. That curvature is currently attributed to a uniform energy-momentum tensor, known as “dark energy”.Our calculation leads to an estimate which roughly agrees with observations. An outstanding open problem in cosmology concerns the nature of “d...

متن کامل

Dark Energy From Vacuum Fluctuations

The nature of the dark energy (DE) is one of the most outstanding problems of physical sciences today. Numerous and often ingenious attempts have been made to explain it, with multiple new papers appearing daily, yet no model proposed so far has gained a general acceptance. Modern approaches to the problem date from the pioneering papers by Zel’dovich [1], who was first to recognize the fundame...

متن کامل

Measurability of vacuum fluctuations and dark energy

Vacuum fluctuations of the electromagnetic field induce current fluctuations in resistively shunted Josephson junctions that are measurable in terms of a physically relevant power spectrum. In this paper we investigate under which conditions vacuum fluctuations can be gravitationally active, thus contributing to the dark energy density of the universe. Our central hypothesis is that vacuum fluc...

متن کامل

Quantum Haplodynamics, Dark Matter, and Dark Energy

In quantum haplodynamics (QHD) the weak bosons, quarks, and leptons are bound states of fundamental constituents, denoted as haplons. The confinement scale of the associated gauge group SU(2)h is of the order of Λ h ≃ 0.3TeV. One scalar state has zero haplon number and is the resonance observed at the LHC. In addition, there exist new bound states of haplons with no counterpart in the SM, havin...

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: Astrophysics and Space Science

سال: 2009

ISSN: 0004-640X,1572-946X

DOI: 10.1007/s10509-009-0246-9