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arXiv 1407.2160quant-phgr-qcmath-phmath.MP
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离散Hamilton元胞自动机的量子性

Quantumness of discrete Hamiltonian cellular automata

Hans-Thomas Elze

摘要:

我们总结了最近的研究离散(整数值)汉密尔顿元胞自动机(CA)表明,他们的动力学只能是一致的定义,如果它是线性的,在同一意义上的酉演化所描述的薛定谔方程。这允许在这种CA和连续量子力学模型之间构建可逆映射,其中包含基本尺度。目前,我们强调这些发现的一般方面,建设可接受的CA可观的,并存在的解决方案的修改后的色散关系的定态。

英文摘要:

We summarize a recent study of discrete (integer-valued) Hamiltonian cellular automata (CA) showing that their dynamics can only be consistently defined, if it is linear in the same sense as unitary evolution described by the Schrödinger equation. This allows to construct an invertible map between such CA and continuous quantum mechanical models, which incorporate a fundamental scale. Presently, we emphasize general aspects of these findings, the construction of admissible CA observables, and the existence of solutions of the modified dispersion relation for stationary states.

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