Results 91 to 100 of about 8,643,173 (282)

Interacting Agegraphic Dark Energy

, 2009
A new dark energy model, named "agegraphic dark energy", has been proposed recently, based on the so-called K\'{a}rolyh\'{a}zy uncertainty relation, which arises from quantum mechanics together with general relativity.
A.A. Coley, A.G. Cohen, A.G. Riess, A.G. Riess, A.G. Riess, B. Gumjudpai, B. Wang, C.L. Bennett, D.N. Spergel, D.N. Spergel, E.J. Copeland, F. Károlyházy, F. Károlyházy, F. Károlyházy, G. Miknaitis, H. Kim, H. Wei, H. Wei, H. Wei, H. Wei, H. Wei, H. Wei, H. Wei, H. Wei, H. Wei, H. Wei, Hao Wei, I.P. Neupane, J. Wainwright, J.F. Zhang, J.M. Cline, J.P. Wu, J.Q. Xia, J.Q. Xia, K.Y. Kim, L. Amendola, L. Amendola, L. Amendola, L. Amendola, L.P. Chimento, M. Arzano, M. Li, M. Maziashvili, M. Maziashvili, M. Tegmark, M. Tegmark, M. Tegmark, N. Sasakura, P. Astier, R.G. Cai, R.G. Cai, R.R. Caldwell, Rong-Gen Cai, S. Lloyd, S. Perlmutter, S.D.H. Hsu, S.M. Carroll, S.W. Allen, S.W. Allen, U. Seljak, W. Zimdahl, W. Zimdahl, W.A. Christiansen, W.M. Wood-Vasey, X. Zhang, Y.J. Ng, Y.J. Ng, Y.J. Ng, Y.S. Myung, Z.K. Guo, Z.K. Guo, Z.K. Guo, Z.K. Guo   +72 more
core   +1 more source

Early Dark Energy from Massive Neutrinos as a Natural Resolution of the Hubble Tension. [PDF]

Physical Review Letters, 2019
The Hubble tension can be significantly eased if there is an early component of dark energy that becomes active around the time of matter-radiation equality.
Jeremy Sakstein, M. Trodden
semanticscholar   +1 more source

Improved Tomographic Binning of 3 × 2 pt Lens Samples: Neural Network Classifiers and Optimal Bin Assignments

The Astrophysical Journal, 2023
Large imaging surveys, such as the Legacy Survey of Space and Time, rely on photometric redshifts and tomographic binning for 3 × 2 pt analyses that combine galaxy clustering and weak lensing.
Irene Moskowitz, Eric Gawiser, Abby Bault, Adam Broussard, Jeffrey A. Newman, Joe Zuntz, The LSST Dark Energy Science Collaboration   +6 more
doaj   +1 more source

Calibrating Dark Energy

, 2008
Exploring the diversity of dark energy dynamics, we discover a calibration relation, a uniform stretching of the amplitude of the equation of state time variation with scale factor. This defines homogeneous families of dark energy physics.
de Putter, Roland, Linder, Eric V.
core   +1 more source

Gravitational Rainbows: LIGO and Dark Energy at its Cutoff. [PDF]

Physical Review Letters, 2018
The recent direct detection of gravitational waves from a neutron star merger with optical counterpart has been used to severely constrain models of dark energy that typically predict a modification of the gravitational wave speed.
Claudia de Rham, S. Melville
semanticscholar   +1 more source

Changes in Microbial Energy Metabolism Measured by Nanocalorimetry during Growth Phase Transitions

Frontiers in Microbiology, 2018
Calorimetric measurements of the change in heat due to microbial metabolic activity convey information about the kinetics, as well as the thermodynamics, of all chemical reactions taking place in a cell.
Alberto Robador, Alberto Robador, Alberto Robador, Douglas E. LaRowe, Douglas E. LaRowe, Steven E. Finkel, Steven E. Finkel, Jan P. Amend, Jan P. Amend, Jan P. Amend, Kenneth H. Nealson, Kenneth H. Nealson   +11 more
doaj   +1 more source

Particle Dark Energy

, 2004
We explore the physics of a gas of particles interacting with a condensate that spontaneously breaks Lorentz invariance. The equation of state of this gas varies from 1/3 to less than -1 and can lead to the observed cosmic acceleration. The particles are
Boss, A. P., Carney, B. W., Laird, J. B., Latham, D. W., Sozzetti, A., Stefanik, R. P., Torres, G.   +6 more
core   +2 more sources

Tale of stable interacting dark energy, observational signatures, and the H0 tension [PDF]

Journal of Cosmology and Astroparticle Physics, 2018
We investigate the observational consequences of a novel class of stable interacting dark energy (IDE) models, featuring interactions between dark matter (DM) and dark energy (DE).
Weiqiang Yang, S. Pan, E. D. Valentino, Rafael C. Nunes, S. Vagnozzi, D. Mota   +5 more
semanticscholar   +1 more source

Braneworlds and dark energy [PDF]

Journal of Physics A: Mathematical and General, 2006
12 pages, latex, 3 eps figures. Talk given at the Seventh Workshop on Quantum Field Theory under the Influence of External Conditions, IEEC, CSIC and University of Barcelona, Barcelona, Catalonia, Spain, 5-9 September 2005. Revised version published in the workshop proceedings, J. Phys. A: Mathematical and General.
Rui Neves, Rui Neves, Cenalo Vaz
openaire   +4 more sources

Quantum Haplodynamics, Dark Matter, and Dark Energy

Advances in High Energy Physics, 2014
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 Λh≃0.3 TeV.
Harald Fritzsch, Joan Solà
doaj   +1 more source