Preparation of two-particle total hyperfine spin singlet states via spin-changing dynamics

TL;DR

This paper proposes a method to generate total hyperfine spin singlet states for two particles with f=1 or f=2 by utilizing spin-changing dynamics and quadratic Zeeman shifts under realistic experimental conditions.

Contribution

It introduces a novel approach to produce hyperfine spin singlet states using spin-changing dynamics and magnetic field tuning, applicable to two particles with different hyperfine spins.

Findings

Successful theoretical proposal for state generation

Feasible with realistic magnetic field parameters

Applicable to particles with f=1 and f=2

Abstract

We present our proposals for generating total hyperfine spin zero state for two f=1 or two f=2 particles, starting from initial unentangled states. We show that our goal can be achieved by exploiting spin changing dynamics and quadratic Zeeman shifts with realistic choices of external magnetic fields and evolution time intervals.