Echoes of covid misinformation

The spread of misinformation

How does information behave? A recent controversial approach is to use ideas in evolutionary biology to study the spread of information. However, in order for the information to ‘evolve’, there has to be some mechanism for variation. This paper would explore the ideas of memes which use the evolutionary biology approach as well as the pitfalls in using this picture. Finally, we will focus our a...

Correcting Mold Misinformation

Echoes of echoes? An episodic theory of lexical access.

In this article the author proposes an episodic theory of spoken word representation, perception, and production. By most theories, idiosyncratic aspects of speech (voice details, ambient noise, etc.) are considered noise and are filtered in perception. However, episodic theories suggest that perceptual details are stored in memory and are integral to later perception. In this research the auth...

Regeneration of photon echoes with amplified photon echoes.

Photon-echo-based devices have been proposed for many applications in data storage, image processing, and optical communications. Many of these applications would benefit if the output from the photon-echo process could be used as input in a second photon-echo process. We demonstrate the generation of such secondary echoes, using the amplified output from an initial photon-echo process. The amp...

Echoes and revival echoes in systems of anharmonically confined atoms

We study echoes and what we call “revival echoes” for a collection of atoms that are described by a single quantum wave function and are confined in a weakly anharmonic trap. The echoes and revival echoes are induced by applying two successive temporally localized potential perturbations to the confining potential, one at time t = 0, and a smaller one at time t = τ . Pulselike responses in the ...