About QUINST

Quantum mechanics is at the heart of our technology and economy - the laser and the transistor are quantum devices - but its full potential is far from being realized. Recent technological advances in optics, nanoscience and engineering allow experimentalists to create artificial structures or put microscopic and mesoscopic systems under new manipulable conditions in which quantum phenomena play a fundamental role.

Quantum technologies exploit these effects with practical purposes. The objective of Quantum Science is to discover, study, and control quantum efects at a fundamental level. These are two sides of a virtuous circle: new technologies lead to the discovery and study of new phenomena that will lead to new technologies.

Our group's aim is  to control and understand quantum phenomena in a multidisciplinary intersection of  Quantum Information, Quantum optics and cold atoms, Quantum Control, Spintronics, Quantum metrology, Atom interferometry, Superconducting qubits and Circuit QED and Foundations of Quantum Mechanics.

 

 

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Mirta Rodríguez Pinilla, CSIC, Madrid (Seminar)

When end where

11/2011

Description

2010/01/28, Mirta Rodríguez Pinilla, CSIC, Madrid

Place:  Salón de Grados ZTF-FCT
Time: 15h.
Title: Quantum control of ultracold atoms and molecules
 

Abstract
We will review several time-dependent schemes for controlling the quantum states of ultracold bosons in an optical lattice and for
controlling the orientation of cold molecules. Our calculations are based on the exact solution of the time-dependent Schroedinger equation, using the Floquet formalism. We show that tunneling and localization properties of interacting ultracold atoms in an optical lattice can be controlled by adiabatically turning on a fast oscillatory force even in the presence of disorder. Implications of our findings for larger systems and the possibility of controlling the phase diagram of disordered-interacting bosonic systems
are discussed. We will also discuss the possibility of generating finite momentum using this fast oscillatory force. Finally, we will briefly review recent work on orientation of molecules using ultrafast laser fields.