The investigation of thermalization in isolated quantum many-body systems has a long history, dating back to the time of developing statistical mechanics. Most quantum many-body systems in nature are ...
The spectral gap is one of the most important physical properties of a quantum many-body system, determining much of its low-energy physics. Gapped systems exhibit non-critical behaviour (for example, ...
In mathematics, there are easily described problems that are very challenging to solve. A great example of this was made famous by Christian Goldbach in 1742. He discovered that no matter what even ...
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