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Untitled Document
Control of Quantum Systems Seminar
November 18, 2009 Speaker: Prof. George Gibson, University of Connecticut Title: Strong field physics revealed through time-domain spectroscopy Abstract: Pump-probe spectroscopy is generally used to study molecular dynamics. Over the past few years, we have turned this around and used molecular dynamics to study strong field interactions with molecules, using time-domain pump-probe spectroscopy. Many stromg field experiments are insensitive to the final state of the atom or molecule under study, although the final state contains important information about the strong field interaction. By studing the vibrational dynamics of the fina
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For more information, please contact:
Svetlana Malinovskaya
Associate Professor
Burchard Room 509
Phone: 201.216.8094
Fax: 201.216.5638
smalinov@stevens.edu | Control of Quantum Systems Seminar
October 26, 2009 Speaker: Prof. David J. Tannor, Weizmann Institute of Science Title: How did Pauli Miss It: An Exact Formulation of Quantum Mechanics with Complex Trajectories Abstract: Ever since the advent of Quantum Mechanics, there has been a quest for a trajectory based formulation of quantum theory that is exact. In the 1950's, David Bohm, buiding on earlier work of Madelung and de Broglie, developed an exact formulation of quantum mechanics in which trajectories evolve in the presence of the usual Newtonian force plus an additional quantum force. In recent years, there has been a resurgence of interest in Bohmian Mechanics as a numerical tool because of its apparently local d
...read more
For more information, please contact:
Svetlana Malinovskaya
Associate Professor
Burchard Room 509
Phone: 201.216.8094
Fax: 201.216.5638
smalinov@stevens.edu | Control of Quantum Systems Seminar
October 21, 2009 Speaker: Sokratis Kalliakos Title: Exotic electronic states in semiconductor quantum dots Abstract: Quantum correlations among electrons confined in semiconductor quantum dots (QDs) are expected to lead to exotic states of matter, such as an electron molecule. In the limit of vanishing electron density, the distances between confined electrons are rigidly fixed like those of nuclei in conventional molecules. The electronic excitations of such a molecule are quantized normal modes of roto-vibration, whose quanta have either a rigid-rotor or relative-motion character. I will present a joint experimental and theoretical investigation of the neutral electronic excitations of nanofabri
...read more
For more information, please contact:
Svetlana Malinovskaya
Associate Professor
Burchard Room 509
Phone: 201.216.8094
Fax: 201.216.5638
smalinov@stevens.edu | Control of Quantum Systems Seminar
September 30, 2009 Speaker: Dr. Praveen Kumar, Stevens Institute of Technology Title: Optimally Controlled Vibrational Population Transfer in a Diatomic Quantum System Abstract: Optimal control theory is used to investigate controlled vibrational population transfer in a diatomic quantum system. The problem of finding the optimal laser field, needed to achieve a specific quantum transition from an initial state to the desired target state, is investigated using an iterative method and the conjugate gradient method. The time-dependent Schroedinger equation is solved, that describes the interaction of laser radiation with matter within the dipole approximation. The control objective is chosen as
...read more
For more information, please contact:
Svetlana Malinovskaya
Associate Professor
Burchard Room 509
Phone: 201.216.8094
Fax: 201.216.5638
smalinov@stevens.edu | Control of Quantum Systems Seminar
September 9, 2009 Speaker: Prof. Marlan O. Scully, Texas A&M University and Princeton University Title: Using Quantum Mechanics to Detect Anthrax Abstract: Counterintuitive effects such as amplification without noise are lasing without inversion are examples of quantum coherence. More recently, the study of quantum coherence effects has lead to improvements in laser spectroscopy which allow us to 'instantaneously' detect anthrax type endospores [1,2]. In the latter example, marker molecules in the endospore are put into maximal oscillation which is detected by scattering laser light off the coherently oscillating molecules. This is called coherent Raman scatterin
...read more
For more information, please contact:
Svetlana Malinovskaya
Associate Professor
Burchard Room 509
Phone: 201.216.8094
Fax: 201.216.5638
smalinov@stevens.edu |
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