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World's most complex microparticle: A synthetic that outdoes nature's intricacy
World most complex microparticle outdoes nature intricacy
2020/4/17
Synthetic microparticles more intricate than some of the most complicated ones found in nature have been produced by a University of Michigan-led international team. The researchers also investig...
World’s smallest neutrino detector observes elusive interactions of particles（图）
World’s smallest neutrino detector interactions particles
2017/9/4
In 1974, a Fermilab physicist predicted a new way for ghostly particles called neutrinos to interact with matter. More than four decades later, a UChicago-led team of physicists built the world’s smal...
World’s smallest neutrino detector finds big physics fingerprint（图）
World’s smallest neutrino detector big physics fingerprint
2017/9/4
After more than a year of operation at the Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL), the COHERENT experiment, using the world’s smallest neutrino detector, has found a big f...
De Sitter brane-world, localization of gravity, and the cosmological constant
De Sitter brane-world localization of gravity the cosmological constant
2010/12/24
Cosmological models with a de Sitter 3-brane embedded in a five-dimensional de Sitter spacetime (dS5) give rise to a finite 4D Planck mass similar to that in Randall-Sundrum (RS) brane-world models in...
Nonlinear sigma models with non-compact target space and non-amen-able symmetry group were introduced long ago in the study of disordered electron systems. They also occur in dimensionally reduced qua...
In this paper we discuss the properties of the general covariant angular momentum of a five-dimensional brane-world model. Through calculating the total angular momentum of this model, we are able to ...
At World's End: Where Complementarity and Irreversibility meet in the Black Hole
Infalling observer information loss quantum cloning complementarity irreversibility death boundary world’s end
2010/4/13
It is argued that a slight modification of the complementarity principle may help to overcome paradoxes about the observer who falls through the event horizon.