Much Ado about Nothing: Vacuum and Renormalization on the Light-front
نویسنده
چکیده
In the first part of my lectures, I will use the example of deep-inelastic scattering to explain why light-front coordinates play a distinguished role in many high energy scattering experiments. After a brief introduction into the concept of light-front quantization, I will show that the vacuum for any light-front Hamiltonian is trivial, i.e. the same as for non-interacting fields. In the rest of my lectures, I will discuss several toy models in 1+1 and 3+1 dimensions and discuss how effective lightfront Hamiltonians resolve the apparent paradox that results from having a trivial light-front vacuum.
منابع مشابه
Much Ado About Nothing by William Shakespeare
More than 400 years after its first appearance in London, Much Ado about Nothing remains a popular stage play with both actors and audiences. Perhaps its success stems from Shakespeare’s compelling presentation of a number of themes with universal appeal, especially those related to courtship and marriage. In the plot of Much Ado young romantic love and faith at first fail, but ultimately true ...
متن کاملMore Ado About Nothing : The Remarkable Relativistic Vacuum State ∗
An overview is given of what mathematical physics can currently say about the vacuum state for relativistic quantum field theories on Minkowski space. Along with a review of classical results such as the Reeh–Schlieder Theorem and its immediate and controversial consequences, more recent results are discussed. These include the nature of vacuum correlations and the degree of entanglement of the...
متن کامل