Solid state physics offers a wealthy variety of intriguing phenomena,several of which are not yet fully understood. Experiments with fermionic atoms in optical lattices get very close to imitating the behaviour of electrons in solid state crystals, thus forming a well-controlled quantum simulator for these systems. Now a team of scientists around Professor Immanuel Bloch and Dr. Christian Groß at the Max Planck Institute of Quantum Optics occupy observed the emergence of antiferromagnetic order over a correlation length of several lattice sites in a chain of fermionic atoms.
Source: phys.org