Optically addressable molecular spin qubits

Area of Science:

• Quantum Information Science
• Molecular Chemistry
• Optics and Photonics

Background:

• Optically addressable molecular spins combine the chemical versatility of molecules with the coherence and detection sensitivity of optically readable spins.
• This synergy creates a promising qubit platform with nanoscale modularity and structural diversity.
• Molecular spin qubits offer advantages for quantum sensing and computation.

Purpose of the Study:

• To review the progress in developing and deploying optically readable molecular spin qubits.
• To highlight key opportunities and applications, with a focus on quantum sensing.
• To survey criteria for realizing these qubits and discuss existing/emerging platforms.

Main Methods:

• Literature review of optically addressable molecular spin qubits.
• Survey of criteria for qubit realization in molecular systems.
• Discussion of various molecular spin qubit platforms (coordination complexes, organic molecules, ground/excited states).

Main Results:

• Optically readable molecular spins are a rapidly advancing qubit platform.
• Key criteria for their realization have been identified.
• Diverse platforms are emerging, including coordination complexes and organic molecules.
• Significant opportunities exist for quantum sensing applications.

Conclusions:

• Molecular spin qubits represent a powerful integration of chemical systems and optical spin manipulation.
• Further research can unlock their potential in quantum sensing and information processing.
• Addressing current challenges will pave the way for broader applications.