Preferred Interaction Ranges in Neutral-Atom Arrays in the Presence of Noise

Spierings, David; Tham, Edwin; Brodutch, Aharon; Khait, Ilia

doi:10.48550/arxiv.2209.09234

Cited by 1 publication

(1 citation statement)

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“…Moreover, Rydberg platforms offer two pathways to modify the connectivity. On the one hand, the Rydberg blockade radius can be modified which affects the range at which two-qubit gates are possible [72]. On the other hand, shift operations offer another degree of freedom: the Rydberg atoms trapped in the optical tweezers can be shifted during an algorithm as demonstrated in [32].…”

Section: Discussionmentioning

confidence: 99%

Ab-initio tree-tensor-network digital twin for quantum computer benchmarking in 2D

Jaschke,

Pagano,

Weber

et al. 2024

Quantum Sci. Technol.

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Large-scale numerical simulations of the Hamiltonian dynamics of a Noisy Intermediate ScaleQuantum (NISQ) computer – a digital twin – could play a major role in developing efficient andscalable strategies for tuning quantum algorithms for specific hardware. Via a two-dimensionaltensor network digital twin of a Rydberg atom quantum computer, we demonstrate the feasibil-ity of such a program. In particular, we quantify the effects of gate crosstalks induced by thevan der Waals interaction between Rydberg atoms: according to an 8×8 digital twin simulationbased on the current state-of-the-art experimental setups, the initial state of a five-qubit repetitioncode can be prepared with a high fidelity, a first indicator for a compatibility with fault-tolerantquantum computing. The preparation of a 64-qubit Greenberger-Horne-Zeilinger (GHZ) state withabout 700 gates yields a 99.9% fidelity in a closed system while achieving a speedup of 35% viaparallelization.

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Section: Discussionmentioning

confidence: 99%