%0 Journal Article
%T Medindo a temperatura de um g¨¢s no regime de micro-Kelvin
%A Smaira
%A Andr¨¦ de Freitas
%A M¨¹ller
%A Stella Torres
%A Magalh£¿es
%A Daniel Varela
%A Bagnato
%A Vanderlei Salvador
%J Revista Brasileira de Ensino de F¨ªsica
%D 2012
%I Scientific Electronic Library Online
%R 10.1590/S1806-11172012000100003
%X scientific development allows us to work today with gas at temperatures far below the 10-6 k . these gases are obtained by optical cooling techniques and need to be characterized for their thermodynamic properties. among these properties is the temperature measurement. we show in a tutorial how low temperatures are measured using techniques called time of flight. these techniques combine basic knowledge of mechanics, thermodynamics, among other topics conventionally studied in the basic physics course.
%K atomic physics
%K cold atoms
%K atomic clock.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1806-11172012000100003&lng=en&nrm=iso&tlng=en