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arXiv · 1210.0928

Qubits and oriented matroids in four time and four space dimensions

J. A. Nieto
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Abstract

We establish a connection between 4-rebits (real qubits) and the Nambu-Goto action with target `spacetime' of four time and four space dimensions ((4+4)-dimensions)). We motivate the subject with three observations. The first one is that a 4-rebit contains exactly the same number of degree of freedom as a complex 3-qubit and therefore 4-rebits are special in the sense of division algebras. Secondly, the (4+4)-dimensions can be splitted as (4+4)=(3+1)+(1+3) and therefore they are connected with an ordinary (1+3)-spacetime and with changed signature (3+1)-spacetime. Finally, we show how geometric aspects of 4-rebits can be related to the chirotope concept of oriented matroid theory.

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J. A. Nieto. 2012-12-10. Qubits and oriented matroids in four time and four space dimensions. https://doi.org/10.1016/j.physletb.2012.12.034

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