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arXiv 0806.1678nlin.CDmath-phmath.DSmath.MP
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开量子Baker映射的共振本征态

On the resonance eigenstates of an open quantum baker map

J. P. Keating, S. Nonnenmacher, M. Novaes, M. Sieber

摘要:

我们研究了开贝克映射的一个特殊量子化的共振本征态。对于普朗克常数的任何容许值,对应的量子映射是一个次酉矩阵,其谱的非零分量包含在复平面$|z_{min}|\leq |z|\leq |z_{max}|$中的一个环内。我们考虑本征态的半经典序列,使得它们的本征值的模收敛到一个固定的半径$r$。我们证明了,如果模收敛到$r=|z_{max}|$,那么本征态序列收敛到一个固定的相空间测度$ρ_{max}$。这同样适用于特征值模收敛到$|z_{min}|$的序列,具有不同的极限测度$ρ_{min}$。这两个限制措施支持分形集,这是经典动力学的陷阱集。对于一般半径$|z_{min}|< r < |z_{max}|$,我们确定家庭的本征态精确的自相似特性。

英文摘要:

We study the resonance eigenstates of a particular quantization of the open baker map. For any admissible value of Planck's constant, the corresponding quantum map is a subunitary matrix, and the nonzero component of its spectrum is contained inside an annulus in the complex plane, $|z_{min}|\leq |z|\leq |z_{max}|$. We consider semiclassical sequences of eigenstates, such that the moduli of their eigenvalues converge to a fixed radius $r$. We prove that, if the moduli converge to $r=|z_{max}|$, then the sequence of eigenstates converges to a fixed phase space measure $ρ_{max}$. The same holds for sequences with eigenvalue moduli converging to $|z_{min}|$, with a different limit measure $ρ_{min}$. Both these limiting measures are supported on fractal sets, which are trapped sets of the classical dynamics. For a general radius $|z_{min}|< r < |z_{max}|$, we identify families of eigenstates with precise self-similar properties.

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