This book offers a comprehensive exploration of a novel hybrid quantum
computing platform based on dual-isotope ytterbium atom arrays. It
presents pioneering work toward fault-tolerant quantum computation
using nuclear spin and optical clock qubits in a neutral-atom system.
The central challenge addressed in this book is the implementation of
quantum error correction (QEC) in neutral-atom architectures,
particularly the need for mid-circuit measurements—reading out
ancilla qubits without disturbing data qubits. To overcome this, the
author develops a hybrid array composed of fermionic 171Yb (serving
as nuclear spin data qubits) and bosonic 174Yb (serving as optical
clock ancilla qubits). This innovative combination enables
non-destructive state readout and low crosstalk between qubits, laying
critical groundwork for QEC protocols. This book demonstrates
efficient state initialization and coherent control of both types of
qubits in large-scale tweezer arrays. Through precise manipulation and
rearrangement techniques, a defect-free, dual-isotope array is
constructed with high single-site fidelity and minimal dual occupancy.
Crosstalk analysis reveals that 174Yb imaging light does not degrade
the coherence of adjacent 171Yb nuclear spin qubits—an essential
result for practical QEC. In parallel, the work reports the
development of a high-power, narrow-linewidth ultraviolet laser at
325 nm to achieve coherent Rydberg excitation of ytterbium atoms.
The laser system, which includes a Raman fiber amplifier and
high-finesse cavity for noise suppression, enables MHz-order Rabi
oscillations between metastable and Rydberg states. This achievement
provides a path toward implementing high-fidelity two-qubit gates, a
cornerstone of universal quantum computation. This book combines
theoretical insights, advanced laser engineering, and precision atomic
control to establish a scalable, neutral-atom-based quantum computing
architecture. Its interdisciplinary approach makes it a valuable
resource not only for physicists working in quantum optics and atomic
physics but also for engineers and computer scientists interested in
next-generation quantum technologies.
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A Hybrid System of Nuclear Spin and Optical Clock Qubits Towards Quantum Error Correction
Produktdetaljer
ISBN
9789819528363
Publisert
2026
Utgiver
Springer Nature
Språk
Product language
Engelsk
Format
Product format
Digital bok
Forfatter