Encapsulation Enhances the Quantum Coherence of a Solid-State Molecular Spin Qubit.

ABSTRACT: Spins within molecules benefit from the atomistic control of synthetic chemistry for the realization of qubits. One advantage is that the quantum superpositions of the spin states encoding the qubit can be coherently manipulated using electromagnetic radiation. The main challenge is the fragility of these superpositions when qubits are to partake of solid-state devices. We address this issue with a supramolecular approach for protecting molecular spin qubits against decoherence. The molecular qubit [Cr(ox)₃]^3- has been encapsulated inside the diamagnetic triple-stranded helicate [Zn₂L₃]⁴⁺ (L is a bis-pyrazolylpyridine ligand). The quantum coherence of the protected qubit is then analyzed with pulsed EPR spectroscopy and compared with t

SUBMITTER: Swain A 

PROVIDER: S-EPMC12518696 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature