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.

 

 

Latest events

null

Dr. Mikhail Glazov

When end where

12/2013

Description

2012/12/11, Dr. Mikhail Glazov


Place:  Sala de Seminarios del Departamento de Física Teórica e Historia de la Ciencia
Time:  12h
Title:   Formation of polariton Bose-Einstein condensate in a semiconductor microcavity
 
 
Abstract
 
The dynamics of the first order spatial coherence for a polariton system in a high-Q microcavity was investigated on the basis of Young's double slit experiment at the conditions of polariton Bose-Einstein condensation. It was found that in the process of condensate formation, the coherence build-up time increases almost linearly with the distance indicating that the coherence expands with almost constant velocity of about 10^8 cm/s. The coherence is strongly affected by exciton reservoir and polariton decay kinetics. It is smaller than coherence in thermally equilibrium system during the growth of condensate density and well exceeds it at the end of condensate decay.