Decay of the Loschmidt Echo for quantum states with sub-Planck scale structures

URN to cite this document:: urn:nbn:de:bvb:355-epub-18621
DOI to cite this document:: 10.5283/epub.1862

Jacquod, P. ; Adagideli, Inanc ; Beenakker, C.

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Date of publication of this fulltext: 05 Aug 2009 13:33

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Abstract

Quantum states extended over a large volume in phase space have oscillations from quantum interferences in their Wigner distribution on scales smaller than $\\hbar$ [W.H. Zurek, Nature {\\bf 412}, 712 (2001)]. We investigate the influence of those sub-Planck scale structures on the sensitivity to an external perturbation of the state\'s time evolution. While we do find an accelerated decay of the ...