Open XXZ chain and boundary modes at zero temperature
We study the open XXZ spin chain in the anti-ferromagnetic regime and for generic longitudinal magnetic fields at the two boundaries. We discuss the ground state via the Bethe ansatz and we show that, for a chain of even length L and in a regime where both boundary magnetic fields are equal and b...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SciPost
2019-08-01
|
| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.7.2.023 |