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d- and f-electrons now play on the same team.
Scientists at Rice University have demonstrated that immutable topological states, which are highly valued in quantum computing, can be entangled with other, controlled quantum states in some materials. "We found that in a particular crystal lattice where electrons are 'stuck', the strongly coupled behavior of electrons in d-atomic orbitals acts like the f-orbital systems of certain heavy fermions," said Kimiao Xi, co - author of the study published in Science Advances.
This discovery connects different areas of quantum physics that previously focused on different properties of quantum materials. In topological materials, for example, quantum entanglement patterns form "protected", unchanging states that are useful for quantum computing.
Researcher Xi and his colleague Haoyu Hu created and tested a quantum model to study electron coupling in a "frustrated" lattice, similar to those found in metals and semimetals.
Xi and Hu showed that electrons from d-atomic orbitals can become part of larger molecular orbitals. It has also been found that electrons in molecular orbitals can become entangled with other "frustrated" electrons.
"In the d-electron world, we have a multi-lane highway. In the f-electron world, electrons move in two levels: one is like a d-electron highway, and the other is like a dirt road where traffic is slow," explains Si. He also notes that while f-electron systems provide pure examples of highly correlated physics, they are not practical for everyday use.
The results of the study showed that in practice it is possible to use all the advantages associated with f-electrons, but at higher temperatures-perhaps even at room temperature.
Scientists at Rice University have demonstrated that immutable topological states, which are highly valued in quantum computing, can be entangled with other, controlled quantum states in some materials. "We found that in a particular crystal lattice where electrons are 'stuck', the strongly coupled behavior of electrons in d-atomic orbitals acts like the f-orbital systems of certain heavy fermions," said Kimiao Xi, co - author of the study published in Science Advances.
This discovery connects different areas of quantum physics that previously focused on different properties of quantum materials. In topological materials, for example, quantum entanglement patterns form "protected", unchanging states that are useful for quantum computing.
Researcher Xi and his colleague Haoyu Hu created and tested a quantum model to study electron coupling in a "frustrated" lattice, similar to those found in metals and semimetals.
Xi and Hu showed that electrons from d-atomic orbitals can become part of larger molecular orbitals. It has also been found that electrons in molecular orbitals can become entangled with other "frustrated" electrons.
"In the d-electron world, we have a multi-lane highway. In the f-electron world, electrons move in two levels: one is like a d-electron highway, and the other is like a dirt road where traffic is slow," explains Si. He also notes that while f-electron systems provide pure examples of highly correlated physics, they are not practical for everyday use.
The results of the study showed that in practice it is possible to use all the advantages associated with f-electrons, but at higher temperatures-perhaps even at room temperature.
