Generation of entanglement in spin states of Rydberg atoms by chirped optical pulses Generation of entanglement in spin states of Rydberg atoms by chirped optical pulses
Department of Physics, Stevens Institute of Technology, Castle Point on Hudson, Hoboken 07030, New Jersey, USA
Adv. Mater. Lett., 2019, 10 (9), pp 619-621
DOI: 10.5185/amlett.2019.9906
Publication Date (Web): Mar 01, 2019
Copyright © IAAM-VBRI Press
E-mail: smalinov@stevens.edu
Quantum entanglement is a crucial resource in many quantum information and quantum communication tasks. In this work, we present a quantum control methodology to create entangled states of two basic classes, the W and the GHZ. A chain of 87Rb atoms in an optical lattice is considered interacting with laser pulses to induce two-photon excitations to Rydberg states having a specific magnetic quantum number. Generation of the W and GHZ three-atomic states is demonstrated via the mechanism of the two-photon adiabatic passage in collective states implying the overlapping chirped pulses and the interplay of the Rabi frequency with the one-photon detuning and the strength of the Rydberg-Rydberg interactions. © VBRI Press.
Many-body physics, entangled states, Rydberg atom, quantum control, chirped laser pulse.
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