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Rydberg-Mediated Entanglement in a Two-Dimensional Neutral Atom Qubit Array.
- Source :
-
Physical Review Letters . 12/6/2019, Vol. 123 Issue 23, p1-1. 1p. - Publication Year :
- 2019
-
Abstract
- We demonstrate high fidelity two-qubit Rydberg blockade and entanglement on a pair of sites in a large two-dimensional qubit array. The qubit array is defined by a grid of blue detuned lines of light with 121 sites for trapping atomic qubits. Improved experimental methods have increased the observed Bell state fidelity to FBell=0.86(2). Accounting for errors in state preparation and measurement we infer a fidelity of F-SPAMBell=0.88. Accounting for errors in single qubit operations we infer that a Bell state created with the Rydberg mediated CZ gate has a fidelity of FCZBell=0.89. Comparison with a detailed error model based on quantum process matrices indicates that finite atom temperature and laser noise are the dominant error sources contributing to the observed gate infidelity. [ABSTRACT FROM AUTHOR]
- Subjects :
- *QUBITS
*QUANTUM gates
*RYDBERG states
*ATOMS
*LOYALTY
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 123
- Issue :
- 23
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 140304753
- Full Text :
- https://doi.org/10.1103/PhysRevLett.123.230501