Pure quantum-mechanical mixture of electrons and photons demonstrated in bismuth selenide
Tuesday, January 5, 2016 - 06:35
in Physics & Chemistry
In 2013, MIT physicists showed for the first time that shining powerful mid-infrared laser light on solid bismuth selenide produces Floquet-Bloch states, which are characterized by replicas of electronic energy states inside a solid with gaps opening up at crossing points of replica states. The same external light also interacts with free electron states immediately outside the solid producing a competing state, called the Volkov state, which is gapless.