Adiabatic preparation of many-body states in optical lattices

TL;DR

This paper explores an adiabatic method for preparing low entropy, strongly correlated many-body states in optical lattices, enabling the creation of complex quantum states from trivial ground states.

Contribution

It demonstrates a novel adiabatic approach to generate high-energy correlated states, such as antiferromagnetic order, in optical lattices.

Findings

Adiabatic passage can produce stable, high-energy many-body states.

The method enables the creation of antiferromagnetic order in bosonic atoms.

It broadens the toolkit for quantum state engineering in optical lattices.

Abstract

We analyze a technique for the preparation of low entropy many body states of atoms in optical lattices based on adiabatic passage. In particular, we show that this method allows preparation of strongly correlated states as stable highest energy states of Hamiltonians that have trivial ground states. As an example, we analyze the generation of antiferromagnetically ordered states by adiabatic change of a staggered field acting on the spins of bosonic atoms with ferromagnetic interactions.