There are two sound velocities in a Bose-Einstein condensate. In addition to the normal sound propagation there is second sound, which is a quantum phenomenon. Scientists in Ludwig Mathey's group from the University of Hamburg ...
Condensed Matter
Jul 2, 2019
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Scientists of the Department of Physics at the University of Hamburg, Germany, detected the magnetic states of atoms on a surface using only heat. The respective study is published in a recent volume of Science. A magnetic ...
General Physics
Mar 8, 2019
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269
What if you could disrupt the crystalline order of quantum matter so that a superfluid could flow freely even at temperatures and pressures where it usually does not? This idea has been demonstrated by a team of scientists ...
Quantum Physics
Oct 15, 2018
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200
Two separate research fields have been united in Hamburg for the very first time. Ultrashort laser pulses enable us to observe and manipulate matter on very short time scales, whereas ultracold atoms permit experiments with ...
Quantum Physics
Jul 6, 2018
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13
Transistors, as used in billions on every computer chip, are nowadays based on semiconductor-type materials, usually silicon. As the demands for computer chips in laptops, tablets and smartphones continue to rise, new possibilities ...
Nanophysics
Jul 14, 2017
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24
Wet-chemically produced nanocrystals are becoming more and more powerful. They are already used in the background lighting of the latest generation of flat panel displays. In the future they will be used increasingly as active ...
General Physics
Jun 7, 2017
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5
Spin-waves are promising candidates for future information processing schemes as there is almost no frictional heating in magnetic transport. Information encoding, however, is only possible in spin-wave packets. A group of ...
General Physics
Apr 5, 2016
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11
If you put water in the freezer to make ice, you trigger a dynamic phase transition.
Quantum Physics
Mar 18, 2015
1
18
Magnets have fascinated mankind for millenia. From the Greek philosophers to scientists of the modern era, which saw the rise of quantum mechanics, magnets have been pondered and investigated. Nowadays, they are not only ...
Quantum Physics
Nov 26, 2013
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