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References: Better Alternatives to Quantum Computing

  1. Quantum sensor - Wikipedia - Covers quantum sensing technologies including atomic clocks, magnetometers, and gravimeters, explaining why single-qubit and few-qubit quantum devices succeed commercially where million-qubit quantum computers cannot.

  2. Atomic clock - Wikipedia - Details the physics of atomic frequency standards from chip-scale to optical lattice clocks, providing technical context for this chapter's analysis of the most commercially successful quantum technology.

  3. Quantum key distribution - Wikipedia - Explains QKD protocols including BB84 and E91, deployment challenges, and distance limitations, relevant to this chapter's evaluation of QKD as a niche but deployable quantum technology.

  4. Quantum Sensing and Communication: Fundamentals and Applications (2023) - Luca Calderaro and Paolo Villoresi - Cambridge University Press - Comprehensive treatment of quantum sensing physics and commercial applications, supporting this chapter's argument that quantum sensing offers superior risk-adjusted returns compared to quantum computing.

  5. Quantum Technology: From Research to Application (2021) - Rainer Blatt and Jian-Wei Pan, Editors - Springer - Surveys the full landscape of quantum technologies including sensing, communication, and computing, providing the comparative framework this chapter uses to identify better investment alternatives.

  6. Quantum Sensing for Gravity Cartography - Stray et al., Nature (2022) - First demonstration of a quantum gravity gradiometer detecting underground structures, exemplifying the commercially viable quantum sensing applications highlighted in this chapter.

  7. A Quantum Revolution in Sensing - National Institute of Standards and Technology - Overview of quantum sensing research and standards including atomic clocks and magnetometers, providing authoritative context for this chapter's analysis of sensing as the proven quantum success story.

  8. The Global Quantum Sensor Market Analysis - MarketsandMarkets (2024) - Market research valuing the quantum sensor industry at approximately $800 million with projected growth, providing the revenue data this chapter uses to contrast sensing profitability with computing losses.

  9. Classical Computing Is Not Dead - Semiconductor Engineering (2024) - Analysis of continued improvement in classical AI hardware including GPUs, TPUs, and neuromorphic chips, supporting this chapter's argument that classical alternatives offer better investment returns than quantum computing.

  10. Wearable Magnetoencephalography Using Optically Pumped Magnetometers - Boto et al., Nature (2018) - Landmark demonstration of a wearable brain-scanning MEG system using quantum magnetometers, illustrating the real-world commercial applications of quantum sensing discussed in this chapter.