Emergence of Spinmerism for Molecular Spin-Qubits Generation

Area of Science:

• Quantum computing
• Molecular magnetism
• Materials science

Background:

• Molecular platforms are key for quantum information processing.
• Spin-crossover (SCO) materials and radical ligands are essential components.

Purpose of the Study:

• To propose a strategy combining SCO metal ions and radical ligands for quantum computing applications.
• To investigate the emergence of unusual spin states and quantum entanglement in such molecular systems.

Main Methods:

• Theoretical modeling using a model Hamiltonian focused on exchange interactions.
• Analysis of spin states, charge transfers, and entanglement phenomena.

Main Results:

• A novel molecular platform exhibiting unique spin state structures was designed.
• The ground state nature is tunable via charge transfer, showing mixed local spin states.
• Maximum superposition was observed, indicating a balance between different exchange interactions.
• Spinmerism, a form of quantum entanglement between metal and radical spins, was demonstrated.

Conclusions:

• The proposed molecular design offers a promising route towards developing molecular spin-qubits.
• Insights into spin-coupled compounds advance the field of molecular quantum information processing.