Results 261 to 270 of about 162,505 (294)
Some of the next articles are maybe not open access.
2017
The relation between the subtracted Green’s functions with different choices of subtraction point in the \(\phi ^4_4\) model. The running coupling constant. Functional equations of the renormalization group. Differential renormalization group equations of the Gell-Mann–Low and the Callan–Symanzik type. The \(\beta \) function.
Leszek Hadasz, Henryk Arodź
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The relation between the subtracted Green’s functions with different choices of subtraction point in the \(\phi ^4_4\) model. The running coupling constant. Functional equations of the renormalization group. Differential renormalization group equations of the Gell-Mann–Low and the Callan–Symanzik type. The \(\beta \) function.
Leszek Hadasz, Henryk Arodź
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Teaching the renormalization group
American Journal of Physics, 1978The renormalization group theory of second-order phase transitions is described in a form suitable for presentation as part of an undergraduate statistical physics course.
Leo P. Kadanoff, Humphrey J. Maris
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1999
We now turn to the problem of renormalizing our field theory to all orders in perturbation theory. To this end, we shall define a flow of effective actions, by defining an effective action that depends on a scale parameter ∧. The differential equation obtained by applying ∂/∂∧ to the functional integral for the effective action is the renormalization ...
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We now turn to the problem of renormalizing our field theory to all orders in perturbation theory. To this end, we shall define a flow of effective actions, by defining an effective action that depends on a scale parameter ∧. The differential equation obtained by applying ∂/∂∧ to the functional integral for the effective action is the renormalization ...
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2000
The renormalization group was discovered in relativistic field theories by Stuckleberg, and independently by Gell-Mann and Low. Later Leo Kadanoff understood that something similar to the field theory renormalization group was the origin of universality in critical phenomena.
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The renormalization group was discovered in relativistic field theories by Stuckleberg, and independently by Gell-Mann and Low. Later Leo Kadanoff understood that something similar to the field theory renormalization group was the origin of universality in critical phenomena.
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2009
Abstract At a critical point, the correlation length diverges: the statistical influctuations extend on all scales of the system and any attempt to solve the dynamics by taking into account only a finite number of degrees of freedom fails.
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Abstract At a critical point, the correlation length diverges: the statistical influctuations extend on all scales of the system and any attempt to solve the dynamics by taking into account only a finite number of degrees of freedom fails.
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2015
In the previous chapters, we saw that the mean-field approach always determines the critical or spinodal indices as simple integers or rational fractions, like 1 or 5/2. Even more, such indices are considered to be an indicator that the behavior of a system is dominated by the mean-field approach. If the exact solution of a problem provided such simple
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In the previous chapters, we saw that the mean-field approach always determines the critical or spinodal indices as simple integers or rational fractions, like 1 or 5/2. Even more, such indices are considered to be an indicator that the behavior of a system is dominated by the mean-field approach. If the exact solution of a problem provided such simple
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Report on Renormalization Group
2010In this lecture we want to present the problem of the research of automodel probability distributions in comparison with usual integral and local central limit theorems. We think that this approach is instructive for understanding the main mathematical idea underlyng this kind of problems.
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Cancer statistics for African American/Black People 2022
Ca-A Cancer Journal for Clinicians, 2022Kimberly D Miller, Rebecca L Siegel
exaly