d-wave resonating valence bond states of fermionic atoms in optical lattices

TL;DR

This paper demonstrates a method to generate and measure d-wave resonating valence bond states of fermionic atoms in 2D optical lattices, using adiabatic transformations from initial Fermi gas states, with numerical evidence supporting rapid state creation.

Contribution

It introduces a controlled protocol for creating d-wave RVB states in optical lattices and provides numerical simulations showing feasible timescales for experimental realization.

Findings

RVB states can be generated faster than decoherence times

Exact numerical studies support the adiabatic transformation approach

Potential for experimental observation of d-wave RVB states

Abstract

We study controlled generation and measurement of superfluid d-wave resonating valence bond (RVB) states of fermionic atoms in 2D optical lattices. Starting from loading spatial and spin patterns of atoms in optical superlattices as pure quantum states from a Fermi gas, we adiabatically transform this state to an RVB state by change of the lattice parameters. Results of exact time-dependent numerical studies for ladders systems are presented, suggesting generation of RVB states on timescale smaller than typical experimental decoherence times.