Clock Transitions Guard Against Spin Decoherence in Singlet Fission

• URL: http://arxiv.org/abs/2108.13337v1
• Date: Mon, 30 Aug 2021 16:03:38 GMT
• Title: Clock Transitions Guard Against Spin Decoherence in Singlet Fission
• Authors: Sina G. Lewis, Kori E. Smyser, Joel D. Eaves (University of Colorado, Boulder)
• Abstract summary: Clock transitions (CTs) can substantially increase coherence times in atomic systems. We show how CTs can dampen intrinsic and extrinsic sources of quantum noise in molecules.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Short coherence times present a primary obstacle in quantum computing and sensing applications. In atomic systems, clock transitions (CTs), formed from avoided crossings in an applied Zeeman field, can substantially increase coherence times. We show how CTs can dampen intrinsic and extrinsic sources of quantum noise in molecules. Conical intersections between two periodic potentials form CTs in electron paramagnetic resonance experiments of the spin-polarized singlet fission photoproduct. We report on a pair of CTs for a two-chromophore molecule in terms of the Zeeman field strength, molecular orientation relative to the field, and molecular geometry.

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