Two Toy Spin Chain Models of Decoherence
Quantum Physics
2024-05-08 v1 Other Condensed Matter
Abstract
We solve for the decoherence dynamics of two models in which a simple qubit or Central Spin couples to a bath of spins; the bath is made from a chain of spins. In model 1, the bath spins are Ising spins; in Model 2, they are coupled by transverse spin-spin interactions, and the chain supports spin waves. We look at (i) the case where the Hamiltonian is static, with a constant system/bath coupling, and (ii) where this coupling varies in time.
Cite
@article{arxiv.2405.03795,
title = {Two Toy Spin Chain Models of Decoherence},
author = {P. C. E. Stamp Zhen Zhu},
journal= {arXiv preprint arXiv:2405.03795},
year = {2024}
}
Comments
9 page, 4 figures