TY - JOUR
T1 - Single-qubit gates based on targeted phase shifts in a 3D neutral atom array
AU - Wang, Yang
AU - Kumar, Aishwarya
AU - Wu, Tsung Yao
AU - Weiss, David S.
PY - 2016/6/24
Y1 - 2016/6/24
N2 - Although the quality of individual quantum bits (qubits) and quantum gates has been steadily improving, the number of qubits in a single system has increased quite slowly. Here, we demonstrate arbitrary single-qubit gates based on targeted phase shifts, an approach that can be applied to atom, ion, or other atom-like systems. These gates are highly insensitive to addressing beam imperfections and have little cross-talk, allowing for a dramatic scaling up of qubit number.We have performed gates in series on 48 individually targeted sites in a 40% full 5 by 5 by 5 three-dimensional array created by an optical lattice. Using randomized benchmarking, we demonstrate an average gate fidelity of 0.9962(16), with an average cross-talk fidelity of 0.9979(2) (numbers in parentheses indicate the one standard deviation uncertainty in the final digits).
AB - Although the quality of individual quantum bits (qubits) and quantum gates has been steadily improving, the number of qubits in a single system has increased quite slowly. Here, we demonstrate arbitrary single-qubit gates based on targeted phase shifts, an approach that can be applied to atom, ion, or other atom-like systems. These gates are highly insensitive to addressing beam imperfections and have little cross-talk, allowing for a dramatic scaling up of qubit number.We have performed gates in series on 48 individually targeted sites in a 40% full 5 by 5 by 5 three-dimensional array created by an optical lattice. Using randomized benchmarking, we demonstrate an average gate fidelity of 0.9962(16), with an average cross-talk fidelity of 0.9979(2) (numbers in parentheses indicate the one standard deviation uncertainty in the final digits).
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U2 - 10.1126/science.aaf2581
DO - 10.1126/science.aaf2581
M3 - Article
C2 - 27339984
AN - SCOPUS:84976313468
VL - 352
SP - 1562
EP - 1565
JO - Science
JF - Science
SN - 0036-8075
IS - 6293
ER -