Analyzing the spin-bath model without simulations
Sebastian Fortin, Olimpia Lombardi
TL;DR
This paper introduces an analytical approach to determine decoherence in the spin-bath model without relying on computational simulations, using a specially designed lemma.
Contribution
The paper presents a novel lemma that enables analytical prediction of decoherence in the spin-bath model, eliminating the need for simulations.
Findings
Decoherence can be predicted analytically in the spin-bath model.
The lemma effectively determines whether the system decoheres.
Analytical results match known behaviors of the model.
Abstract
On the basis of a lemma designed to decide whether a discrete system decoheres or not with no need of computer simulations, in this paper we analyze the well-known spin-bath model. The lemma allows us to predict the decoherence of the system by analytical means.
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Taxonomy
TopicsQuantum Computing Algorithms and Architecture · Quantum Information and Cryptography · Quantum many-body systems