A new quantum imaging
technique generates images with photons that have never touched to
object -- in this case a sketch of a cat. This alludes to the famous
Schrödinger cat paradox, in which a cat inside a closed box is said to
be simultaneously dead and alive as long there is no information outside
the box to rule out one option over the other. Similarly, the new
imaging technique relies on a lack of information regarding where the
photons are created and which path they take.
Credit: Copyright: Patricia Enigl, IQOQI
Researchers from the Institute for Quantum Optics and Quantum
Information (IQOQI), the Vienna Center for Quantum Science and
Technology (VCQ), and the University of Vienna have developed a
fundamentally new quantum imaging technique with strikingly
counterintuitive features. For the first time, an image has been
obtained without ever detecting the light that was used to illuminate the imaged object, while the light revealing the image never touches the
imaged object. Read more.
O objectivo deste blogue é partilhar ideias e materiais úteis para o estudo e para o ensino da Física e da Química. Destinatários: alunos, professores e outros eventuais interessados. Críticas e sugestões são bem-vindas. A autora reserva-se ao direito de apagar comentários despropositados.