Measuring Chern numbers in Hofstadter strips
Topologically non-trivial Hamiltonians with periodic boundary conditions are characterized by strictly quantized invariants. Open questions and fundamental challenges concern their existence, and the possibility of measuring them in systems with open boundary conditions and limited spatial extensio...
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| Format: | Article |
| Language: | English |
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SciPost
2017-08-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.3.2.012 |