Journal
OPTICS LETTERS
Volume 44, Issue 19, Pages 4801-4804Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.004801
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Funding
- National Natural Science Foundation of China (NSFC) [11704131, 11704132, 11804104]
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We propose a controlled-PHASE gate for neutral atoms in which one of the qubit state components adiabatically evolves along the multiple-atom eigenstate formed by the chirped laser pulse coupling to Rydberg states and intrinsic dipole-dipole exchange interactions and, consequently, accumulates an interaction-induced geometric phase. The geometric Rydberg gate is not limited by an adiabatic condition, which is sped up by shortcuts to adiabaticity (STA). Analyses show that an STA scheme is more robust than a non-adiabatic case against the variations of control parameters and faster than an adiabatic case, which protects from the decay of Rydberg states. Furthermore, an intermediate value of dipole-dipole interaction strength is enough for our scheme. (C) 2019 Optical Society of America.
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