Quantum annealing with pairs of $^2\Sigma$ molecules as qubits
- URL: http://arxiv.org/abs/2203.14210v2
- Date: Fri, 12 Aug 2022 08:43:17 GMT
- Title: Quantum annealing with pairs of $^2\Sigma$ molecules as qubits
- Authors: K. Asnaashari and R. V. Krems
- Abstract summary: We propose an algorithm that encodes Ising models into qubits defined by pairs of $2Sigma$ molecules sharing an excitation near avoided crossings.
This can be used to realize a transverse field Ising model tunable by an external electric or magnetic field.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The rotational and fine structure of open-shell molecules in a $\Sigma$
electronic state gives rise to crossings between Zeeman states of different
parity. These crossings become avoided in the presence of an electric field. We
propose an algorithm that encodes Ising models into qubits defined by pairs of
$^2\Sigma$ molecules sharing an excitation near these avoided crossings. This
can be used to realize a transverse field Ising model tunable by an external
electric or magnetic field, suitable for quantum annealing applications. We
perform dynamical calculations for several examples with one- and
two-dimensional connectivities. Our results demonstrate that the probability of
obtaining valid annealing solutions is high and can be optimized by varying the
annealing times.
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