Stable dynamic helix state in the nonintegrable XXZ Heisenberg model
- URL: http://arxiv.org/abs/2308.06146v1
- Date: Fri, 11 Aug 2023 14:14:40 GMT
- Title: Stable dynamic helix state in the nonintegrable XXZ Heisenberg model
- Authors: Gang Zhang and Zhi Song
- Abstract summary: We show that random transverse fields in x and y directions drive the transition from integrability to nonintegrability.
It results in the fast decay of a static helix state, which is the eigenstate of an unperturbed XXZ Heisenberg model.
In the presence of uniform z field, the static helix state becomes a dynamic helix state with a relatively long life as a quantum scar state.
- Score: 3.17756638310389
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We investigate the influence of the external fields on the stability of spin
helix states in a XXZ Heisenberg model. Exact diagonalization on finite system
shows that random transverse fields in x and y directions drive the transition
from integrability to nonintegrability. It results in the fast decay of a
static helix state, which is the eigenstate of an unperturbed XXZ Heisenberg
model. However, in the presence of uniform z field, the static helix state
becomes a dynamic helix state with a relatively long life as a quantum scar
state.
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