Alternative method for the measurement of the temperature of a Bose-Einstein condensate

• Authors: Abel Camacho , Luis Barragán-Gil , Alfredo Macías
• Languages of publication: EN

Abstracts

EN

Usually the temperature in a Bose-Einstein condensate is experimentally deduced resorting to the comparison between the Maxwell-Boltzmann velocity distribution function and the density profile in momentum space. Though a successful method it is merely an approximation, since it also implies the use of classical statistical mechanics at temperatures close to the condensation temperature where quantum effects play a relevant role and cannot be neglected. The present work puts forward an alternative method in which we use an ultra-intense light pulse and a nonlinear optical material as detectors for differences in times-of-flight, and in this way the temperature is deduced.

Keywords

EN

temperature in BEC; ultra-intense light pulses

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2010
• Volume: 8
• Issue: 5
• Pages: 717-725

Dates

published

1 - 10 - 2010

online

22 - 7 - 2010

Contributors

author

Abel Camacho

• Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apartado Postal 55-534, C.P. 09340, México, D.F., México

author

Luis Barragán-Gil

• Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apartado Postal 55-534, C.P. 09340, México, D.F., México

author

Alfredo Macías

• Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apartado Postal 55-534, C.P. 09340, México, D.F., México

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Identifiers

DOI

10.2478/s11534-009-0155-0