Clocking In & Out: Elucidating Decoherence Dynamics in Spin-Based Molecular Qubits

Current quantum computers are built using architectures like superconducting and ion trap qubits that require millikelvin operating temperatures. Molecular qubits promise long coherence times at liquid nitrogen temperatures. Unlike their more developed counterparts, the dynamical properties of molecular qubits are not well understood. In my poster, I will explore the effects of fluctuations in molecular geometry on the coherence times of spin qubits based on organic dimers. These organic dimers form entangled triplet excitons via a singlet fission mechanism. Previous work shows that these molecules contain clock transitions, where the transition frequency between states is insensitive to fluctuations in the magnetic field at particular geometries. I use Lindblad quantum dynamics to study the effect of noise on the coherence times of these molecules and test the efficacy of clock transitions on preventing decoherence.