Time Evolution of Quantum Fractals

Details Time Evolution of Quantum Fractals Time Evolution of Quantum Fractals

2000-05-16

arxiv.org/abs/quant-ph/0005060v2

Phys. Rev. Lett. 85, 5022 (2000)

Physics

Quantum Physics

4 pages, 8 figures

Scientific paper

10.1103/PhysRevLett.85.5022

We propose a general construction of wave functions of arbitrary prescribed fractal dimension, for a wide class of quantum problems, including the infinite potential well, harmonic oscillator, linear potential and free particle. The box-counting dimension of the probability density $P_t(x)=|\Psi(x,t)|^2$ is shown not to change during the time evolution. We prove a universal relation $D_t=1+D_x/2$ linking the dimensions of space cross-sections $D_x$ and time cross-sections $D_t$ of the fractal quantum carpets.

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