Bulletin of the American Physical Society - APS March Meeting 2012 - Volume 57, Number 1. The Loschmidt Echo and Fidelity decay are used to measure perturbations on a quantum wave chaotic system. We extended these concepts to classical waves to detect perturbations. [1]. In this work, we show that volume changing perturbations to a classical wave chaotic cavity can be quantified with a sub-wavelength sensitivity. This is demonstrated both numerically and experimentally. A wave chaotic quasi-1D star graph model [2], was initially used to show the results. The quantification of electrical-volume changing perturbations to a one cubic meter aluminum box will be demonstrated experimentally; the experimental results are also supported by a finite difference time domain simulation of the box. Finally, the approach to quantify these perturbations will be shown to apply to a generic wave chaotic system by using a time domain version of our Random Coupling Model.
Quantifying Volume Changing Perturbations to a Wave Chaotic System / Taddese, Biniyam; Gradoni, Gabriele; Moglie, Franco; Antonsenthomas, ; Ott, Edward; Anlage, Steven. - ELETTRONICO. - 57:(2012). (Intervento presentato al convegno APS March Meeting 2012 tenutosi a Boston, MA, USA nel February 27–March 2 2012).
Quantifying Volume Changing Perturbations to a Wave Chaotic System
GRADONI, GABRIELE;MOGLIE, FRANCO;
2012-01-01
Abstract
Bulletin of the American Physical Society - APS March Meeting 2012 - Volume 57, Number 1. The Loschmidt Echo and Fidelity decay are used to measure perturbations on a quantum wave chaotic system. We extended these concepts to classical waves to detect perturbations. [1]. In this work, we show that volume changing perturbations to a classical wave chaotic cavity can be quantified with a sub-wavelength sensitivity. This is demonstrated both numerically and experimentally. A wave chaotic quasi-1D star graph model [2], was initially used to show the results. The quantification of electrical-volume changing perturbations to a one cubic meter aluminum box will be demonstrated experimentally; the experimental results are also supported by a finite difference time domain simulation of the box. Finally, the approach to quantify these perturbations will be shown to apply to a generic wave chaotic system by using a time domain version of our Random Coupling Model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
