Superluminal moving defects in the Ising spin chain
Quantum excitations in lattice systems always propagate at a finite maximum velocity. We probe this mechanism by considering a defect travelling at a constant velocity in the quantum Ising spin chain in transverse field. Independently of the microscopic details of the defect, we characterize the exp...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2018
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