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arXiv · 2210.15747

Scattering solution of interacting Hamiltonian for electronic control of molecular spin qubits

Christian Bunker·Silas Hoffman·Jie-Xiang Yu·Xiao-Guang Zhang·Hai-Ping Cheng
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Abstract

We theoretically study how a scattered electron can entangle molecular spin qubits (MSQs). This requires solving the inelastic transport of a single electron through a scattering region described by a tight-binding interacting Hamiltonian. We accomplish this using a Green's function solution. We can model realistic physical implementations of MSQs by parameterizing the tight-binding Hamiltonian with first-principles descriptions of magnetic anisotropy and exchange interactions. We find that for two-MSQ systems with inversion symmetry, the spin degree of freedom of the scattered electron offers probabilistic control of the degree of entanglement between the MSQs.

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Christian Bunker, Silas Hoffman, Jie-Xiang Yu, Xiao-Guang Zhang, Hai-Ping Cheng. 2022-10-27. Scattering solution of interacting Hamiltonian for electronic control of molecular spin qubits. https://doi.org/10.1103/physreva.107.042423

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