Jul 16, 2018 | Updated: 09:54 AM EDT

Harvard Physicists Are Able to Create Cold Atom Fermi-Hubbard AntiFerromagnet

May 27, 2017 07:22 AM EDT

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Physicists at Harvard University have created the AntiFerromagnet with the ultracold quantum gases. In the very cold temperature the atom exhibit the cold atom Fermi-Hubbard antiferromagnet.

A professor in the Department of Physics at Harvard University, Markus Greiner and his team are able to emulate the Fermi-Hubbard model according to the official statement from Harvard. As a result, they are able to exhibit the cold atom Fermi-Hubbard antiferromagnet of the lithium-6 atoms.

The experiment of cold atom Fermi-Hubbard antiferromagnet is showing the behavior of electrons in the ultracold atoms. Professor Greiner held the lithium-6 atoms in an optical lattice. During observation, the gases interact according to rules set out by the Fermi-Hubbard model, thus creating the antiferromagnet property.

Professor Greiner found that the system became magnetic at the low temperature, exhibiting the cold atom Fermi-Hubbard antiferromagnet model. However, when the atom density is reduced, the magnetism disappeared. Subsequently, Professor Greiner and his team are now able to explore the Fermi-Hubbard model using the atom simulator as reported by Physics World.

In this research, the team is able to achieve the milestone of the low-temperature phase of Fermi-Hubbard model. As they are able to create the cold atom Fermi-Hubbard antiferromagnet that encompassed the whole system, They have laid the foundation for simulating the Fermi–Hubbard system close to its ground state.

Furthermore, their research to create the cold atom Fermi-Hubbard antiferromagnet has opened the possibility to many interesting aspects of physics. One of those aspects is the high-temperature superconductivity, which was considered to be a complicated phenomenon, However, the research from Professor Greiner mimic the behavior of high-temperature superconductivity in a low-temperature state.

The team has published their research to create a cold atom Fermi-Hubbard antiferromagnet in the journal Nature. In order to understand further of the antiferromagnet property, watch the explanation of the electrical switching in antiferromagnet below:

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