0511108v2

related topics
{classical, space, random}
{energy, state, states}
{equation, function, exp}
{group, space, representation}
{time, wave, function}
{let, theorem, proof}
{state, algorithm, problem}
{operator, operators, space}
{cos, sin, state}
{state, states, coherent}
{trap, ion, state}
{energy, gaussian, time}
{states, state, optimal}

Eigensolutions of the kicked Harper model

G. A. Kells

abstract: The time-evolution operator for the kicked Harper model is reduced to block matrix form when the effective Planck's constant hbar = 2 pi M/N and M and N are integers. Each block matrix is spanned by an orthonormal set of N "kq" (quasi-position/quasi-momentum) functions. This implies that the system's eigenfunctions or stationary states are necessarily discrete and periodic. The reduction allows, for the first time, an examination of the 2-dimensional structure of the system's quasi-energy spectrum and the study of, with unprecedented accuracy, the system's stationary states.

oai_identifier:
oai:arXiv.org:quant-ph/0511108
categories:
quant-ph
comments:
9 pages, 12 figures
arxiv_id:
quant-ph/0511108
created:
2005-11-11
updated:
2006-07-14

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