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Paper 1

Nonadditive quantum error-correcting code

Sixia Yu, Qing Chen, C. H. Lai, C. H. Oh

Year

2007

Journal

arXiv preprint

DOI

arXiv:0704.2122

arXiv

0704.2122

We report the first nonadditive quantum error-correcting code, namely, a $((9,12,3))$ code which is a 12-dimensional subspace within a 9-qubit Hilbert space, that outperforms the optimal stabilizer code of the same length by encoding more levels while correcting arbitrary single-qubit errors.

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Paper 2

A minimalist account of agency in physics

Ali Barzegar, Emilia Margoni, Daniele Oriti

Year

2023

Journal

arXiv preprint

DOI

arXiv:2307.16054

arXiv

2307.16054

We adopt a top-down approach to agency aimed at developing a minimalist, scalable and naturalized account of it. After providing a general definition, we explore some possible extensions and refinements, domain of applicability, as well as a comparison with other recent accounts of agency, and possible objections to our proposal. With respect to what we classify as strong (such as Tononi's) and weak (such as Rovelli's) characterizations, our notion of agency situates itself in a middle position - our intent being precisely that of spelling out the advantages of this median account within a variety of contexts, such as the interpretation of quantum mechanics, the debate on the nature of physical laws and Bayesianism.

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