Laser-induced molecular alignment in the presence of chaotic rotational dynamics.

  title={Laser-induced molecular alignment in the presence of chaotic rotational dynamics.},
  author={Johannes Flo{\ss} and Paul Brumer},
  journal={The Journal of chemical physics},
  volume={146 12},
Coherent control of chaotic molecular systems, using laser-assisted alignment of sulphur dioxide (SO2) molecules in the presence of a static electric field as an example, is considered. Conditions for which the classical version of this system is chaotic are established, and the quantum and classical analogs are shown to be in very good correspondence. It is found that the chaos present in the classical system does not impede the alignment, neither in the classical nor in the quantum system… 

Quantum control of molecular rotation

The angular momentum of molecules, or, equivalently, their rotation in three-dimensional space, is ideally suited for quantum control. Molecular angular momentum is naturally quantized, time

Determining the number of integrals of motion by an adapted correlation dimension method.

An adapted correlation dimension algorithm is used to numerically determine the number of integrals of motion in a variety of conservative classical systems and used to study partial barriers and turnstiles in phase space and to predict the long-time stability of planetary systems using short-time data.



Experimental Demonstration of Coherent Control in Quantum Chaotic Systems.

This work experimentally demonstrates coherent control of a quantum system, whose dynamics is chaotic in the classical limit, and demonstrates the anticipated sensitivity of control to the exact parameters of the kicking field as well as its disappearance in the Classical regime of excitation.

Phase control of nonadiabaticity-induced quantum chaos in an optical lattice.

The qualitative nature (i.e., integrable vs chaotic) of the translational dynamics of a three-level atom in an optical lattice is shown to be controllable by varying the relative laser phase of two

Coherent control of quantum chaotic diffusion: Diatomic molecules in a pulsed microwave field

Extensive phase control of quantum chaotic diffusion is demonstrated for diatomic molecules periodically kicked with microwave pulses. In particular, both complete suppression of chaotic diffusion as

Coherent control of molecular dynamics

We review the principles and some recent advances in the theory of coherent control of molecular processes and discuss some of its experimental realizations. Amongst the topics discussed are:

Colloquium: Aligning molecules with strong laser pulses

We review the theoretical and experimental status of intense laser alignment---a field at the interface between intense laser physics and chemical dynamics with potential applications ranging from

Controlling the sense of molecular rotation: Classical versus quantum analysis

Recently, it was predicted theoretically and verified experimentally that a pair of delayed and cross-polarized short laser pulses can create molecular ensembles with a well-defined sense of rotation

Manipulating Molecules via Combined Static and Laser Fields

Interaction of the strong electric field of an intense laser beam with the anisotropic polarizability of a linear molecule creates pendular states, superpositions of the field-free rotational states,

Anderson wall and BLOCH oscillations in molecular rotation.

It is shown that the centrifugal distortion of rotating molecules eventually halts the growth, by causing Anderson localization beyond a critical value of the angular momentum--the Anderson wall.

Time evolution of pendular states created by the interaction of molecular polarizability with a pulsed nonresonant laser field

Previous investigations have shown that the instantaneous eigenstates of a molecule interacting via its polarizability with a strong electric field of a nonresonant laser pulse are pendular hybrids

Angular focusing, squeezing, and rainbow formation in a strongly driven quantum rotor.

It is shown that for strong enough fields, a sharp peak in the rotor angular distribution can be achieved via a time-domain focusing phenomenon, followed by the formation of rainbowlike angular structures.