Optimization of Entangling Logic Gates Based on the Rydberg Blockade Effect

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Resumo

The implementation of a quantum logic gate in a system of cold atoms in optical microtraps is analyzed. The dynamics of two spin qubits is simulated, and a number of processes that limit the efficiency of entanglement based on the Rydberg blockade effect are considered. A geometry of two-photon excitation of Rydberg states of atoms is proposed that makes it possible to increase the robustness of the system to variations in a number of parameters and to reduce losses associated with the incoherent scattering of the driving field.

Sobre autores

L. Gerasimov

Quantum Technology Centre, Faculty of Physics, Lomonosov Moscow State University; Center for Advanced Studies, Peter the Great St. Petersburg Polytechnic University

Email: gerasimov_lv@spbstu.ru
Moscow, 119991 Russia;St. Petersburg, 195251 Russia

D. Kupriyanov

Quantum Technology Centre, Faculty of Physics, Lomonosov Moscow State University

Email: gerasimov_lv@spbstu.ru
Moscow, 119991 Russia

S. Straupe

Quantum Technology Centre, Faculty of Physics, Lomonosov Moscow State University;Russian Quantum Center

Autor responsável pela correspondência
Email: gerasimov_lv@spbstu.ru
Moscow, 119991 Russia;Skolkovo, Moscow, 121205 Russia

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