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Physical Sciences › Computer Science › Hardware and Architecture
Quantum Proof of Work with Parametrized Quantum Circuits
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Conflicts of Interest
Identified Weaknesses
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Paper Summary
Paperzilla title
Quantum Mining? Not So Fast: Quantum Computer Slower Than Regular Simulation
This paper proposes a Quantum Proof of Work (qPoW) for cryptocurrency mining and tests it on a 4-qubit quantum computer. Although the method works in principle, the quantum computation was currently significantly slower than a classical computer simulation. The authors project that a quantum advantage might be achievable with larger quantum computers (30+ qubits).
Possible Conflicts of Interest
One author is affiliated with PoWx, a company working on proof-of-work systems, indicating a potential conflict of interest related to promoting quantum computing applications in this field.
Identified Weaknesses
Quantum Computation Slower than Classical Simulation
The quantum computer used was significantly slower than a classical computer simulation, raising questions about the practical applicability of the proposed method at the current stage of quantum computing development.
Sensitivity to Noise and Gate Errors
The reliance on specific gate parameters and the susceptibility of the quantum computations to noise introduce potential vulnerabilities and uncertainties in the security and reliability of the proposed QPoW system.
Reliance on Projected Quantum Advantage
The estimated quantum advantage relies on projections and assumptions about future quantum computer capabilities and may not accurately reflect the real-world performance gains.
Limited Qubit Number and Experimental Validation
The tested quantum system involves only a small number of qubits and lacks extensive experimental validation. It's unclear how well the proposed method will scale to larger, more complex quantum systems.
Rating Explanation
While the paper presents a novel and potentially interesting idea, the current implementation on a quantum computer is slower than classical simulation, which severely limits its practical significance. The study warrants a rating of 3 due to this major limitation, but acknowledges its potential for future developments in quantum computing.
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File Information
Original Title:
Quantum Proof of Work with Parametrized Quantum Circuits
File Name:
2204.10643v2.pdf
[download]
File Size:
0.40 MB
Uploaded:
August 05, 2025 at 03:41 PM
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