Belief States and Narrow Content

Belief States and Narrow Content

Broad Diphotons from Narrow States

ATLAS and CMS have each reported a modest diphoton excess consistent with the decay of a broad resonance at ∼ 750 GeV. We show how this signal can arise in a weakly coupled theory comprised solely of narrow width particles. In particular, if the decaying particle is produced offshell, then the associated diphoton resonance will have a broad, adjustable width. We present simplified models which ...

Narrow Baryonium States in Qcd

The unconvent ional states o f qqqq, q~l and pure gluon type, appearing in BB dual diagrams with nonplanar baryons are discussed, treating their interpolating fields in a conf inement approach to QCD due to Migdal. The mass spect rum is given to lowest order and the quan t um numbers are discussed. It is argued that some of the resonances should have narrow width and hence could be identified w...

The Content and Epistemology of Phenomenal Belief

Experiences and beliefs are different sorts of mental states, and are often taken to belong to very different domains. Experiences are paradigmatically phenomenal, characterized by what it is like to have them. Beliefs are paradigmatically intentional, characterized by their propositional content. But there are a number of crucial points where these domains intersect. One central locus of inter...

Deep, Narrow Sigmoid Belief Networks Are Universal Approximators

In this note, we show that exponentially deep belief networks can approximate any distribution over binary vectors to arbitrary accuracy, even when the width of each layer is limited to the dimensionality of the data. We further show that such networks can be greedily learned in an easy yet impractical way.