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Adiabatic quantum computation with Rydberg-dressed atoms

2013; American Physical Society; Volume: 87; Issue: 5 Linguagem: Inglês

10.1103/physreva.87.052314

1538-4446

Tyler Keating, Krittika Goyal, Yuan‐Yu Jau, Grant Biedermann, Andrew J. Landahl, Ivan Deutsch,

Quantum Mechanics and Applications

We study an architecture for implementing adiabatic quantum computation with trapped neutral atoms. Ground-state atoms are dressed by laser fields in a manner conditional on the Rydberg blockade mechanism, thereby providing the requisite entangling interactions. As a benchmark, we study the performance of quantum annealing to the ground state of an Ising spin lattice. We model a proof-of-principle experiment in a realistic architecture, including details of the atomic implementation, with qubits encoded in the clock states of ${}^{133}$Cs. Numerical simulation yields fidelities >0.98 for up to four qubits, and implementations of 10--20 qubits are within the range of current technology.