Physics Footnotes | The Double Slit Experiment Performed With Electrons @physicsfootnotes6114 | Uploaded 8 years ago | Updated 3 hours ago
http://PhysicsFootnotes.com -- Double-slit diffraction is a corner stone of quantum mechanics. It illustrates key features of quantum mechanics: interference and the particle-wave duality of matter. In 1965, Richard Feynman presented a thought experiment to show these features. Here we demonstrate the full realization of his famous thought experiment. By placing a movable mask in front of a double-slit to control the transmission through the individual slits, probability distributions for single- and double-slit arrangements were observed. Also, by recording single electron detection events diffracting through a double-slit, a diffraction pattern was built up from individual events.
This shows the electron buildup pattern one electron at a time. The electron detection rate was about 1 Hz. The first 22 seconds are displayed at the detection rate, the next 30 sec are sped up to 72x, then 20 sec at 210x. The last 20 seconds are slowed back down to the detection rate. The intensity is controlled by a time dependent function to increase visibility of the individual 'blobs' at the beginning.
Roger Bach et al 2013 New J. Phys. 15 033018
http://dx.doi.org/10.1088/1367-2630/15/3/033018
Content from this work may be used under the terms of the
Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
http://PhysicsFootnotes.com -- Double-slit diffraction is a corner stone of quantum mechanics. It illustrates key features of quantum mechanics: interference and the particle-wave duality of matter. In 1965, Richard Feynman presented a thought experiment to show these features. Here we demonstrate the full realization of his famous thought experiment. By placing a movable mask in front of a double-slit to control the transmission through the individual slits, probability distributions for single- and double-slit arrangements were observed. Also, by recording single electron detection events diffracting through a double-slit, a diffraction pattern was built up from individual events.
This shows the electron buildup pattern one electron at a time. The electron detection rate was about 1 Hz. The first 22 seconds are displayed at the detection rate, the next 30 sec are sped up to 72x, then 20 sec at 210x. The last 20 seconds are slowed back down to the detection rate. The intensity is controlled by a time dependent function to increase visibility of the individual 'blobs' at the beginning.
Roger Bach et al 2013 New J. Phys. 15 033018
http://dx.doi.org/10.1088/1367-2630/15/3/033018
Content from this work may be used under the terms of the
Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
