(1) - Intellectual Archive
... vacuum to survive not too far above the LHC scale explains away the fine-tuning problem and signals the breakdown of the SM in this region. This conclusion, albeit preliminary, sheds light on the problem of extrapolating field theories in the deep ultraviolet sector, specifically near the Planck sca ...
... vacuum to survive not too far above the LHC scale explains away the fine-tuning problem and signals the breakdown of the SM in this region. This conclusion, albeit preliminary, sheds light on the problem of extrapolating field theories in the deep ultraviolet sector, specifically near the Planck sca ...
Progress In N=2 Field Theory
... The Higgs vev sets a scale: At energies << 246 GeV we can describe physics using the Maxwell action + corrections: ...
... The Higgs vev sets a scale: At energies << 246 GeV we can describe physics using the Maxwell action + corrections: ...
RENORMALIZATION AND GAUGE INVARIANCE∗
... In principle, observed phenomena only require finite field theories for their description anyway, since there is an energy limit to the collisions that can be studied, and if we choose a cutoff Λ , for instance by introducing a lattice with mesh size a = 1/Λ , our theories may well be accurate for a ...
... In principle, observed phenomena only require finite field theories for their description anyway, since there is an energy limit to the collisions that can be studied, and if we choose a cutoff Λ , for instance by introducing a lattice with mesh size a = 1/Λ , our theories may well be accurate for a ...
On-Shell Methods in Quantum Field Theory
... • Everything at a hadron collider (signals, backgrounds, luminosity measurement) involves QCD • Strong coupling is not small: s(MZ) 0.12 and running is important events have high multiplicity of hard clusters (jets) each jet has a high multiplicity of hadrons higher-order perturbative corre ...
... • Everything at a hadron collider (signals, backgrounds, luminosity measurement) involves QCD • Strong coupling is not small: s(MZ) 0.12 and running is important events have high multiplicity of hard clusters (jets) each jet has a high multiplicity of hadrons higher-order perturbative corre ...
Seoul National University, Korea, 06/2010, Insuk Yu
... For what condensed matter systems these problems are minimized? Phase Transitions triggered by thermal fluctuations ...
... For what condensed matter systems these problems are minimized? Phase Transitions triggered by thermal fluctuations ...
Compact dimensions
... gravitons and not some other new physics ─ gravitons would be blind to all Standard Model quantum numbers 3. Identify these particles (if seen) as graviton modes ─ spin-2 nature is a dead giveaway 4. Find out the number of large extra dimensions ...
... gravitons and not some other new physics ─ gravitons would be blind to all Standard Model quantum numbers 3. Identify these particles (if seen) as graviton modes ─ spin-2 nature is a dead giveaway 4. Find out the number of large extra dimensions ...
pptx, 11Mb - ITEP Lattice Group
... h(k,θ) is like 3D Z2 TI Z2 invariant This invariant does not depend on parametrization? Consider two parametrizations h(k,θ) and h’(k,θ) Interpolation between them ...
... h(k,θ) is like 3D Z2 TI Z2 invariant This invariant does not depend on parametrization? Consider two parametrizations h(k,θ) and h’(k,θ) Interpolation between them ...
Euclidean Field Theory - Department of Mathematical Sciences
... have very little to do with each other: quantum field theory and the theory of critical statistical phenomena. On the one hand, the methods and insight from quantum field theory have helped tremendously to understand the concept of “universality” in statistical mechanics. This is the fact that the e ...
... have very little to do with each other: quantum field theory and the theory of critical statistical phenomena. On the one hand, the methods and insight from quantum field theory have helped tremendously to understand the concept of “universality” in statistical mechanics. This is the fact that the e ...
26-06-2015-Juan-Maldacena (2)
... Black holes and hydrodynamics • Field theory at finite temperature = black brane in Anti-de-Sitter space Ripples on the black brane = ...
... Black holes and hydrodynamics • Field theory at finite temperature = black brane in Anti-de-Sitter space Ripples on the black brane = ...
Studying Quantum Field Theory
... the two preceding maps expresses the conservation of the Maxwell current. One may speculate about the relation of other exceptional EIRs to the gauge theory of higher spin fields. In particular, the sextuplet labeled by (ν, `, n) = (1, 1, 2) appears to be related to a conformal gauge theory of gravi ...
... the two preceding maps expresses the conservation of the Maxwell current. One may speculate about the relation of other exceptional EIRs to the gauge theory of higher spin fields. In particular, the sextuplet labeled by (ν, `, n) = (1, 1, 2) appears to be related to a conformal gauge theory of gravi ...
Effective lattice models for two-dimensional
... interaction ∼ N mı̄ m̄ /(e2 |rı̄ − r̄ |) between monopole charges [3] for all N . 4. Large g: The n fluctuations can be integrated out in a ‘high temperature’ expansion and, apart from an innocuous renormalization of parameters, the physics is independent of N . The results can therefore be deduce ...
... interaction ∼ N mı̄ m̄ /(e2 |rı̄ − r̄ |) between monopole charges [3] for all N . 4. Large g: The n fluctuations can be integrated out in a ‘high temperature’ expansion and, apart from an innocuous renormalization of parameters, the physics is independent of N . The results can therefore be deduce ...
Anderson transition ???????? Critical Statistics
... are universally described by random matrix theory. With the help of the one parameter scaling theory we propose an alternative characterization of this universality class. It is also identified the universality class associated to the metal-insulator transition. In low dimensions it is characterized ...
... are universally described by random matrix theory. With the help of the one parameter scaling theory we propose an alternative characterization of this universality class. It is also identified the universality class associated to the metal-insulator transition. In low dimensions it is characterized ...
125 GeV higgs in supersymmetry
... ELEMENTARY HIGGS BOSON PREDICTED BY THE SM IS DISCOVERED! „APPARENTLY JUST” IS VERY IMPORTANT! ...
... ELEMENTARY HIGGS BOSON PREDICTED BY THE SM IS DISCOVERED! „APPARENTLY JUST” IS VERY IMPORTANT! ...
Basics of Lattice Quantum Field Theory∗
... holds where V (l) is a definition of the potential between heavy quarks due to their interaction with the gluons. One confinement criterion is the linear rise confinement ↔ V (l) ∝ σ × l ...
... holds where V (l) is a definition of the potential between heavy quarks due to their interaction with the gluons. One confinement criterion is the linear rise confinement ↔ V (l) ∝ σ × l ...
The integer quantum Hall effect and Anderson localisation
... The existence of the integer quantum Hall effect (IQHE) depends crucially on Anderson localisation, and, conversely, many aspects of the delocalisation transition have been studied in most detail in quantum Hall systems. The following article is intended to provide a introduction to the IQHE from th ...
... The existence of the integer quantum Hall effect (IQHE) depends crucially on Anderson localisation, and, conversely, many aspects of the delocalisation transition have been studied in most detail in quantum Hall systems. The following article is intended to provide a introduction to the IQHE from th ...
Scale invariance
In physics, mathematics, statistics, and economics, scale invariance is a feature of objects or laws that do not change if scales of length, energy, or other variables, are multiplied by a common factor. The technical term for this transformation is a dilatation (also known as dilation), and the dilatations can also form part of a larger conformal symmetry.In mathematics, scale invariance usually refers to an invariance of individual functions or curves. A closely related concept is self-similarity, where a function or curve is invariant under a discrete subset of the dilatations. It is also possible for the probability distributions of random processes to display this kind of scale invariance or self-similarity.In classical field theory, scale invariance most commonly applies to the invariance of a whole theory under dilatations. Such theories typically describe classical physical processes with no characteristic length scale.In quantum field theory, scale invariance has an interpretation in terms of particle physics. In a scale-invariant theory, the strength of particle interactions does not depend on the energy of the particles involved.In statistical mechanics, scale invariance is a feature of phase transitions. The key observation is that near a phase transition or critical point, fluctuations occur at all length scales, and thus one should look for an explicitly scale-invariant theory to describe the phenomena. Such theories are scale-invariant statistical field theories, and are formally very similar to scale-invariant quantum field theories.Universality is the observation that widely different microscopic systems can display the same behaviour at a phase transition. Thus phase transitions in many different systems may be described by the same underlying scale-invariant theory.In general, dimensionless quantities are scale invariant. The analogous concept in statistics are standardized moments, which are scale invariant statistics of a variable, while the unstandardized moments are not.