Many-body quantum dynamics slows down at low density
We study quantum many-body systems with a global U(1) conservation law, focusing on a theory of $N$ interacting fermions with charge conservation, or $N$ interacting spins with one conserved component of total spin. We define an effective operator size at finite chemical potential through suitabl...
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| Format: | Article |
| Language: | English |
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SciPost
2020-11-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.9.5.071 |