09-127 Cesar R. de Oliveira, Mariza S. Simsen
QUANTUM ENERGY EXPECTATION IN PERIODIC TIME-DEPENDENT HAMILTONIANS VIA GREEN FUNCTIONS (376K, pdf) Jul 31, 09
Abstract , Paper (src), View paper (auto. generated pdf), Index of related papers

Abstract. Let $U_F$ be the Floquet operator of a time periodic hamiltonian $H(t)$. For each positive and discrete observable $A$ (which we call a {\em probe energy}), we derive a formula for the Laplace time average of its expectation value up to time $T$ in terms of its eigenvalues and Green functions at the circle of radius $e^{1/T}$. Some simple applications are provided which support its usefulness.

Files: 09-127.src( 09-127.comments , 09-127.keywords , deOSLaplace.pdf.mm )