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Goethe University Researchers Visualize Quantum Electron Waves

Goethe University Researchers Visualize Quantum Electron Waves
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China , Frankfurt , Brandenburg , Germany , Kang-lin , Fujian , Qinying-ji , Hao-liang , Sina-jacob , Paul-dirac , Maksim-kunitski , Sebastian-eckart

Researchers at Goethe University Frankfurt visualize quantum effects in electron waves

Researchers at Goethe University Frankfurt visualize quantum effects in electron waves
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Kang-lin , Fujian , China , Frankfurt , Brandenburg , Germany , Teilen , Baden-wüberg , Chinese , Maksim-kunitski , Physik-astronomie , Wissenschaftliche-ansprechpartner

Nanotechnology Now - Press Release: Quantum wave in helium dimer filmed for the first time: Collaboration between Goethe University and the University of Oklahoma


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Home > Press > Quantum wave in helium dimer filmed for the first time: Collaboration between Goethe University and the University of Oklahoma
Professor Reinhard Dörner (left) and Dr Maksim Kunitzki in front of the COLTRIMS reaction microscope at Goethe University, which was used to observe the quantum wave. (Photo: Goethe University Frankfurt)
Abstract:
Anyone entering the world of quantum physics must prepare themself for quite a few things unknown in the everyday world: Noble gases form compounds, atoms behave like particles and waves at the same time and events that in the macroscopic world exclude each other occur simultaneously.

Oklahoma , United-states , University-of-oklahoma , Russia , Frankfurt , Brandenburg , Germany , Russian , Markus-bernards , Maksim-kunitski , Maksim-kunitzki , Vitaly-efimov

Quantum wave in helium dimer filmed for the first time


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Anyone entering the world of quantum physics must prepare themself for quite a few things unknown in the everyday world: Noble gases form compounds, atoms behave like particles and waves at the same time and events that in the macroscopic world exclude each other occur simultaneously.
In the world of quantum physics, Reinhard Dörner and his team are working with molecules which - in the sense of most textbooks - ought not to exist: Helium compounds with two atoms, known as helium dimers. Helium is called a noble gase precisely because it does not form any compounds. However, if the gas is cooled down to just 10 degrees above absolute zero (minus 273 °C) and then pumped through a small nozzle into a vacuum chamber, which makes it even colder, then - very rarely - such helium dimers form. These are unrivaledly the weakest bound stable molecules in the Universe, and the two atoms in the molecule are correspondingly extremely far apart from each other. While a chemical compound of two atoms commonly measures about 1 angstrom (0.1 nanometres), helium dimers on average measure 50 times as much, i.e. 52 angstrom.

Russia , Frankfurt , Brandenburg , Germany , Russian , Maksim-kunitski , Uwe-dettmar , Maksim-kunitzki , Vitaly-efimov , Goethe-university , Goethe-university-frankfurt , ரஷ்யா

Quantum wave in helium dimer filmed for first time


Date Time
Quantum wave in helium dimer filmed for first time
Anyone entering the world of quantum physics must prepare themself for quite a few things unknown in the everyday world: Noble gases form compounds, atoms behave like particles and waves at the same time and events that in the macroscopic world exclude each other occur simultaneously.
In the world of quantum physics, Reinhard Dörner and his team are working with molecules which – in the sense of most textbooks – ought not to exist: Helium compounds with two atoms, known as helium dimers. Helium is called a noble gase precisely because it does not form any compounds. However, if the gas is cooled down to just 10 degrees above absolute zero (minus 273 °C) and then pumped through a small nozzle into a vacuum chamber, which makes it even colder, then – very rarely – such helium dimers form. These are unrivaledly the weakest bound stable molecules in the Universe, and the two atoms in the molecule are correspondingly extremely far apart from each other. While a chemical compound of two atoms commonly measures about 1 angstrom (0.1 nanometres), helium dimers on average measure 50 times as much, i.e. 52 angstrom.

Russia , Frankfurt , Brandenburg , Germany , Russian , Maksim-kunitski , Maksim-kunitzki , Holger-maschkiwitz , Vitaly-efimov , Sebastian-eckart , Anton-kalinin , Uwe-dettmar