Localization and Delocalization in Kicked Anderson Model
نویسندگان
چکیده
منابع مشابه
Delocalization and Classicalization of Quantum Wavepacket in Kicked Anderson Model
We consider quantum diffusion of the initially localized wavepacket in one-dimensional kicked disordered system with classical coherent perturbation. The wavepacket localizes in the unperturbed kicked Anderson model. However, the wavepacket gets delocalized even by coupling with monochromatic perturbation. We call the state “dynamically delocalized state.” It is numerically shown that the deloc...
متن کاملLocalization-delocalization transition in a system of quantum kicked rotors.
The quantum dynamics of atoms subjected to pairs of closely spaced delta kicks from optical potentials are shown to be quite different from the well-known paradigm of quantum chaos, the single delta-kick system. We find the unitary matrix has a new oscillating band structure corresponding to a cellular structure of phase space and observe a spectral signature of a localization-delocalization tr...
متن کاملDiagrammatic approach to Anderson localization in the quantum kicked rotator.
The phenomenon of Anderson localization in the quantum kicked rotator is analyzed by means of concepts which were originally introduced in condensed matter physics. A diagrammatic language similar to the impurity diagram technique employed in the theory of disordered conductors is developed. The method is applied to a calculation of the quantum return probability and leads to results which coin...
متن کاملKicked rotor and Anderson localization Boulder School on Condensed Matter Physics, 2013
The physics of Anderson localization is highly dependent on the dimension of the system. While the 1d situation is fairly well understood—localization is the generic behavior, the localization length is comparable to the mean free path, and the fluctuation properties in the localized regime are essentially well understood—the physics of higher dimensions is much richer still. Dimension 3 is esp...
متن کاملExperimental Observation of Two-Dimensional Anderson Localization with the Atomic Kicked Rotor.
Dimension 2 is expected to be the lower critical dimension for Anderson localization in a time-reversal-invariant disordered quantum system. Using an atomic quasiperiodic kicked rotor-equivalent to a two-dimensional Anderson-like model-we experimentally study Anderson localization in dimension 2 and we observe localized wave function dynamics. We also show that the localization length depends e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2003
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsjs.72sa.125