Lab Home | Phone | Search
Center for Nonlinear Studies  Center for Nonlinear Studies
 Home 
 People 
 Current 
 Affiliates 
 Alumni 
 Visitors 
 Students 
 Research 
 ICAM-LANL 
 Quantum 
 Publications 
 Publications 
 2007 
 2006 
 2005 
 2004 
 2003 
 2002 
 2001 
 2000 
 <1999 
 Conferences 
 Workshops 
 Sponsorship 
 Talks 
 Colloquia 
 Colloquia Archive 
 Seminars 
 Postdoc Seminars Archive 
 Quantum Lunch 
 CMS Colloquia 
 Q-Mat Seminars 
 Q-Mat Seminars Archive 
 Archive 
 Kac Lectures 
 Dist. Quant. Lecture 
 Ulam Scholar 
 Colloquia 
 
 Jobs 
 Students 
 Summer Research 
 Student Application 
 Visitors 
 Description 
 Past Visitors 
 Services 
 General 
 PD Travel Request 
 
 History of CNLS 
 
 Maps, Directions 
 CNLS Office 
 T-Division 
 LANL 
 
Monday, February 08, 2016
3:00 PM - 4:00 PM
CNLS Conference Room (TA-3, Bldg 1690)

Colloquium

The Role of Phase Space Structures in Chaotic Ionization or Using Geometry to Understand Ionization from Mathematical Perspective

Korana Burke
University of California, Davis

Humans interact with chaotic systems on everyday basis. Chaos plays a fundamental role on every length scale. It can be seen in the motion of asteroids, the formation of weather patterns, population growth, and even in the firing of neurons. When studying a chaotic system, one frequently faces both mathematical and experimental challenges. From mathematical point of view it is sometimes hard to even write down a complete set of equations describing the system behavior, while the experimental challenges arise from the fact that it is hard to isolate a chaotic system from random interactions with the environment. In recent years, atomic gasses have emerged as experimentally accessible systems for observing chaos under controlled conditions. In this talk I will present the study of geometric structures that arise in phase space of a Rydberg atom exposed to external electric field pulses. I will describe how these geometric structures govern the chaotic transport and how we can use them to both understand and to probe the ionization process. Finally, I will present a set of recent results which show that this approach is valid not only in the classical regime, but also for atoms whose energy levels are in the regime frequently thought of as requiring quantum computations.

Host: Sebastian Deffner