Decoherence of a Spin Qubit Coupled with Spin Chain

TL;DR

This paper investigates how a spin qubit's coherence is affected by its interaction with a spin chain exhibiting a specific $1/r^2$ interaction, shedding light on decoherence mechanisms in quantum systems.

Contribution

It provides a detailed analysis of decoherence in a spin qubit coupled to a $1/r^2$ interacting spin chain, a novel focus in quantum decoherence studies.

Findings

Decoherence rate depends on the $1/r^2$ interaction strength.

Identifies conditions under which decoherence is minimized.

Provides insights into controlling qubit coherence in spin chain environments.

Abstract

In this report, we examine the relaxation phenomena of a spin qubit coupled to a spin chain with a $1/r^2$ interaction.