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Help
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Es bien sabido que agentes externos como campos electromagnticos modifican las propiedades del vaco de una teora; lo desestabilizan. Para fermiones de Dirac, esto se refleja en fenmenos como la creacin de pares partculaantipartcula en el vaco por efectos de un campo elctrico intenso, el llamado mecanismo de Schwinger; o el apareamiento de pares virtuales por efecto de un campo magntico. Este efecto se describe usualmente mediante el llamado condensado ferminico, que es el valor de expectacin en el vaco del campo escalar compuesto por un fermin y un antifermin y que hace las veces de parmetro de orden cuando en su formacin esta involucrada la ruptura de la simetra quiral. Los ejemplos antes descritos se enlistan entre los nuevos fenmenos que son importantes en el contexto de la fsica de partculas en condiciones extremas.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
