Theoretical particle physics Represented by Theory group: Faculty
... two kinds of fermion particles, leptons and quarks, and a set of forces that allow fermion particles to interact with each other. To be precise the “forces” are being transmitted through exchanging gauge bosons. The combination of these particles form protons, neutrons and other particles. Today the ...
... two kinds of fermion particles, leptons and quarks, and a set of forces that allow fermion particles to interact with each other. To be precise the “forces” are being transmitted through exchanging gauge bosons. The combination of these particles form protons, neutrons and other particles. Today the ...
Why Life Exists?
... the latest findings in quantum biology and biophysics have discovered that there is in fact a tremendous degree of coherence within all living systems. The accelerating electrons explain not only the Maxwell Equations and the Special Relativity, but the Heisenberg Uncertainty Relation, the Wave-Part ...
... the latest findings in quantum biology and biophysics have discovered that there is in fact a tremendous degree of coherence within all living systems. The accelerating electrons explain not only the Maxwell Equations and the Special Relativity, but the Heisenberg Uncertainty Relation, the Wave-Part ...
Gauge Theories of the Strong and Electroweak Interactions
... Common to all parts of the Standard Model are exchange bosons, which are related to gauge fields showing local gauge symmetries. (Gravitation is also based on a local symmetry.) Gauge theories are based on gauge groups. The groups belonging to the Standard Model are SU(3) ⊗ SU(2) ⊗ U(1) . | {z } QCD ...
... Common to all parts of the Standard Model are exchange bosons, which are related to gauge fields showing local gauge symmetries. (Gravitation is also based on a local symmetry.) Gauge theories are based on gauge groups. The groups belonging to the Standard Model are SU(3) ⊗ SU(2) ⊗ U(1) . | {z } QCD ...
Eight-Dimensional Quantum Hall Effect and ‘‘Octonions’’ Bogdan A. Bernevig, Jiangping Hu, Nicolaos Toumbas,
... finite gap, from the dispersion relation we see that the thermodynamic limit is taken such that l20 R2 =I is kept constant. l0 can be considered the magnetic length. The correlation functions can be computed and are Gaussian localized. Our liquid is therefore incompressible. The degeneracy of each ...
... finite gap, from the dispersion relation we see that the thermodynamic limit is taken such that l20 R2 =I is kept constant. l0 can be considered the magnetic length. The correlation functions can be computed and are Gaussian localized. Our liquid is therefore incompressible. The degeneracy of each ...
10 Supersymmetric gauge dynamics: N = 1 10.1 Confinement and
... is not a conserved quantity in YM theories, while N-ality is). Let us consider heavy test particles transforming either in the anti-symmetric representation or in the symmetric representation of the gauge group, S and A , respectively. Each of them will have its own string tension, TS and TA (but sa ...
... is not a conserved quantity in YM theories, while N-ality is). Let us consider heavy test particles transforming either in the anti-symmetric representation or in the symmetric representation of the gauge group, S and A , respectively. Each of them will have its own string tension, TS and TA (but sa ...
inflation
... If current ideas about unification are correct, the first “event” of our Universe was the decoupling of gravitons (before that they were supposedly in thermal equilibrium with the remainder), that occurred at about tPl thus, their present temperature should be at most 0.91 K, corresponding to a ...
... If current ideas about unification are correct, the first “event” of our Universe was the decoupling of gravitons (before that they were supposedly in thermal equilibrium with the remainder), that occurred at about tPl thus, their present temperature should be at most 0.91 K, corresponding to a ...
Document
... Boundary conditions are determined by solving equations across the light cone: Infinitesmally after the collision there are No transverse fields Longitudinal magnetic and electric fields ...
... Boundary conditions are determined by solving equations across the light cone: Infinitesmally after the collision there are No transverse fields Longitudinal magnetic and electric fields ...
could
... Two source charges have equal magnitude. One is + and the other -, as shown. What vector could represent the electric field at the point shown caused BY THE POSITIVE CHARGE ALONE? ...
... Two source charges have equal magnitude. One is + and the other -, as shown. What vector could represent the electric field at the point shown caused BY THE POSITIVE CHARGE ALONE? ...
The structure of perturbative quantum gauge theories
... We now establish a connection between the Hopf algebra of renormalization and a Gerstenhaber structure in the context of gauge theories In general, we assign to each vertex vi a parameter λi for i = 1, . . . , k. To each edge ej we assign a field φj and a corresponding antifield φ‡j for j = 1, . . . ...
... We now establish a connection between the Hopf algebra of renormalization and a Gerstenhaber structure in the context of gauge theories In general, we assign to each vertex vi a parameter λi for i = 1, . . . , k. To each edge ej we assign a field φj and a corresponding antifield φ‡j for j = 1, . . . ...
Chapter 2 Fundamental Concepts of Bose
... we will discuss in detail in chapter 4. In general, a long-wavelength fluctuation universally appears in a process of spontaneous symmetry breaking in particle and condensed matter systems, and is called the Nambu-Goldstone modes[4, 5, 6]. The Bogoliubov dispersion law is a special case of the Nambu ...
... we will discuss in detail in chapter 4. In general, a long-wavelength fluctuation universally appears in a process of spontaneous symmetry breaking in particle and condensed matter systems, and is called the Nambu-Goldstone modes[4, 5, 6]. The Bogoliubov dispersion law is a special case of the Nambu ...
Physical Origin of Elementary Particle Masses
... model the free parameters rank in the number of hundreds, or more, again mainly connected to new (unobserved) masses of supersymmetric partners, and to new Higgs-like mechanisms at higher (incalculable) energy scales. Here we, instead, start by assuming that all of a particle’s mass arises exclusive ...
... model the free parameters rank in the number of hundreds, or more, again mainly connected to new (unobserved) masses of supersymmetric partners, and to new Higgs-like mechanisms at higher (incalculable) energy scales. Here we, instead, start by assuming that all of a particle’s mass arises exclusive ...
Basics of Lattice Quantum Field Theory∗
... really: the same for Z: universal ↔ physics ↔ ratios where Z drops out ...
... really: the same for Z: universal ↔ physics ↔ ratios where Z drops out ...
Sect. 18: The Strong Force
... symmetry, and energy which require the fermions to be distinguishable one from another.) It is remarkable what a variety of compound atomic nuclei can be produced by the exchange of a simple meson particle-antiparticle pair between proton and neutron (92 natural elements plus hundreds of isotopes). ...
... symmetry, and energy which require the fermions to be distinguishable one from another.) It is remarkable what a variety of compound atomic nuclei can be produced by the exchange of a simple meson particle-antiparticle pair between proton and neutron (92 natural elements plus hundreds of isotopes). ...
Atomic Precision Tests and Light Scalar Couplings
... The Vainshtein mechanism reduces the coupling in a dense environment by increasing Z The chameleon mechanism makes the range become smaller in a dense environment by increasing m The Damour-Polyakov mechanism reduces β in a dense environment ...
... The Vainshtein mechanism reduces the coupling in a dense environment by increasing Z The chameleon mechanism makes the range become smaller in a dense environment by increasing m The Damour-Polyakov mechanism reduces β in a dense environment ...
Krishnendu-Sengupta
... Make a time dependent transformation to address the dynamics by projecting on the instantaneous low-energy sector. The method provides an accurate description of the ramp if J(t)/U <<1 and hence can treat slow and fast ramps at equal footing. ...
... Make a time dependent transformation to address the dynamics by projecting on the instantaneous low-energy sector. The method provides an accurate description of the ramp if J(t)/U <<1 and hence can treat slow and fast ramps at equal footing. ...
Quantum Mechanics from Periodic Dynamics: the bosonic case
... Rµ = (Rt c, Rx ) and the fundamental mode (n = 1) has four-momentum p̄µ = (Ē/c, p̄) ≡ ~/Rµ . For this massless field ω̄(p̄) = |p̄|c/~. Thus every mode of the energy tower has a massless dispersion relation. At small fundamental momentum |p̄| → 0 the compactification radius tends to infinity Rt → ∞, ...
... Rµ = (Rt c, Rx ) and the fundamental mode (n = 1) has four-momentum p̄µ = (Ē/c, p̄) ≡ ~/Rµ . For this massless field ω̄(p̄) = |p̄|c/~. Thus every mode of the energy tower has a massless dispersion relation. At small fundamental momentum |p̄| → 0 the compactification radius tends to infinity Rt → ∞, ...
How to create a universe - Philsci
... Elementary particles are divided into fermions and bosons according to the value they possess of a property called ‘intrinsic spin’. If a particle possesses a non-integral value of intrinsic spin, it is referred to as a fermion, whilst if it possesses an integral value, it is referred to as a boson. ...
... Elementary particles are divided into fermions and bosons according to the value they possess of a property called ‘intrinsic spin’. If a particle possesses a non-integral value of intrinsic spin, it is referred to as a fermion, whilst if it possesses an integral value, it is referred to as a boson. ...
Fundamental Forces
... • A gauge symmetry principle joins the weak and EM forces into a single electroweak force. • The symmetry group is SU (2)L × U (1)Y , contains U (1)em. • Most of this symmetry is “hidden” at low energies. Only the U (1)em subgroup of EM remains unhidden. • Hiding the symmetry means: ...
... • A gauge symmetry principle joins the weak and EM forces into a single electroweak force. • The symmetry group is SU (2)L × U (1)Y , contains U (1)em. • Most of this symmetry is “hidden” at low energies. Only the U (1)em subgroup of EM remains unhidden. • Hiding the symmetry means: ...
Fine Structure Constant Variation from a Late Phase Transition
... While theorists have considered the possibility that the fundamental constants are timedependent for a long time (starting with Dirac [2]), it is not clear how the result (1) fits into the current field-theoretic picture of elementary particle physics. In the Standard Model (SM), all the coupling co ...
... While theorists have considered the possibility that the fundamental constants are timedependent for a long time (starting with Dirac [2]), it is not clear how the result (1) fits into the current field-theoretic picture of elementary particle physics. In the Standard Model (SM), all the coupling co ...
5. Particles in a Magnetic Field
... Quantum Hall E↵ect, was discovered by Klaus von Klitzing in 1980. For this, he was awarded the Nobel prize in 1985. It turns out that the integer quantum Hall e↵ect is a direct consequence of the existence of discrete Landau levels. The plateaux occur when precisely ⌫ 2 Z+ Landau levels are filled. ...
... Quantum Hall E↵ect, was discovered by Klaus von Klitzing in 1980. For this, he was awarded the Nobel prize in 1985. It turns out that the integer quantum Hall e↵ect is a direct consequence of the existence of discrete Landau levels. The plateaux occur when precisely ⌫ 2 Z+ Landau levels are filled. ...
Physical Origin of Elementary Particle Masses
... of hundreds, or more, again mainly connected to new (unobserved) masses of supersymmetric partners, and to new Higgs-like mechanisms at higher (incalculable) energy scales. Here we, instead, start by assuming that all of a particle’s mass arises exclusively from its interaction with itself (see Fig. ...
... of hundreds, or more, again mainly connected to new (unobserved) masses of supersymmetric partners, and to new Higgs-like mechanisms at higher (incalculable) energy scales. Here we, instead, start by assuming that all of a particle’s mass arises exclusively from its interaction with itself (see Fig. ...
like in Arts - Physik und Astronomie an der Universiteat Innsbruck
... Finite quantum field theories W. Lucha ...
... Finite quantum field theories W. Lucha ...
Continuity of the density of states in a magnetic field?
... all but countably many E and ( b )at any point E where k, is continuous, k, ( E )+ k(E). Combining this with the arguments before we have: Theorem 1. For any B, the limit (1) exists at all E except for a countable set. If + B, then k(E, B,) + k(E, B) for all but countably many E. Alternatively, one ...
... all but countably many E and ( b )at any point E where k, is continuous, k, ( E )+ k(E). Combining this with the arguments before we have: Theorem 1. For any B, the limit (1) exists at all E except for a countable set. If + B, then k(E, B,) + k(E, B) for all but countably many E. Alternatively, one ...
The Evolution of Quantum Field Theory, From QED to Grand
... the only two force theories that are really successful, being electrodynamics and Einstein’s General Relativity, are both based on some fundamental local symmetry, are there other ways to employ symmetries in a similar way, to describe different forces? When I was M. Veltman’s undergraduate student, ...
... the only two force theories that are really successful, being electrodynamics and Einstein’s General Relativity, are both based on some fundamental local symmetry, are there other ways to employ symmetries in a similar way, to describe different forces? When I was M. Veltman’s undergraduate student, ...