Electromagnetic Preons as Particles of Everything
... and magnetic fields that propagate at the speed of light through a vacuum. Because the speed of EM waves predicted by the wave equation coincided with the measured speed of light, Maxwell concluded that light itself is an EM wave. In the quantum theory EMR consists of photons, the elementary particl ...
... and magnetic fields that propagate at the speed of light through a vacuum. Because the speed of EM waves predicted by the wave equation coincided with the measured speed of light, Maxwell concluded that light itself is an EM wave. In the quantum theory EMR consists of photons, the elementary particl ...
Three-dimensional solids in the limit of high magnetic fields
... above, is a pair of “fermi rings” (with zmomenta pF(QL)). (Figure 3) This is important, because interaction effects are most significant for states near the fermi surface.2 3.4 Spin In the presence of a magnetic field, Zeeman splitting causes energy differences between states of opposite spin. For ...
... above, is a pair of “fermi rings” (with zmomenta pF(QL)). (Figure 3) This is important, because interaction effects are most significant for states near the fermi surface.2 3.4 Spin In the presence of a magnetic field, Zeeman splitting causes energy differences between states of opposite spin. For ...
We live in the quantum 4-dimensional Minkowski space-time
... in Japan and Schwinger, Feynman, and Dyson in the United States. Although infinities still remain, the theory succeeds in ”subtracting” them away in a definite, covariant way so that finite results can be obtained, which have been found to be in excellent agreement with the observed Lamb shifts and ...
... in Japan and Schwinger, Feynman, and Dyson in the United States. Although infinities still remain, the theory succeeds in ”subtracting” them away in a definite, covariant way so that finite results can be obtained, which have been found to be in excellent agreement with the observed Lamb shifts and ...
a tale of two observers
... dS/CFT can actually work (at least in this setup). N ∼ `2 /`2Pl is an INTEGER and hence the bulk cosmological constant is quantized. Brane constructions? In special cases, we can compute wavefunction (i.e. ZCFT ) [D.A.,Denef,Harlow], find interesting structure, possibly (non-perturbative) instabilit ...
... dS/CFT can actually work (at least in this setup). N ∼ `2 /`2Pl is an INTEGER and hence the bulk cosmological constant is quantized. Brane constructions? In special cases, we can compute wavefunction (i.e. ZCFT ) [D.A.,Denef,Harlow], find interesting structure, possibly (non-perturbative) instabilit ...
general-relativity as an effective-field theory
... action. For example, the constant Λ is proportional to the cosmological constant (λ = −8πGΛ), which experiment tells us is very small.[11] We therefore set (the renormalized value of) Λ = 0 for the rest of this paper. Experiment tells us very little about the dimensionless constants c1 , c2 , boundi ...
... action. For example, the constant Λ is proportional to the cosmological constant (λ = −8πGΛ), which experiment tells us is very small.[11] We therefore set (the renormalized value of) Λ = 0 for the rest of this paper. Experiment tells us very little about the dimensionless constants c1 , c2 , boundi ...
Hierarchy of Planck Constants
... We can distinguish various kind of theories in physics. Most of them are constructive. They attempt to build up a picture of the more complex phenomena out of the materials of a relatively simple formal scheme from which they start out. Thus the kinetic theory of gases seeks to reduce mechanical, th ...
... We can distinguish various kind of theories in physics. Most of them are constructive. They attempt to build up a picture of the more complex phenomena out of the materials of a relatively simple formal scheme from which they start out. Thus the kinetic theory of gases seeks to reduce mechanical, th ...
PoS(QG-Ph)011
... through violations of the space-time symmetries, particularly Lorentz symmetry. The search for Quantum Gravity phenomenology through violations of Lorentz symmetries can be traced to [1, 2]. However, this possibility faces now very serious experimental bounds [3] and some theoretical challenges. For ...
... through violations of the space-time symmetries, particularly Lorentz symmetry. The search for Quantum Gravity phenomenology through violations of Lorentz symmetries can be traced to [1, 2]. However, this possibility faces now very serious experimental bounds [3] and some theoretical challenges. For ...
Gregory Moore - Rutgers Physics
... Later, Moore & Witten explained in greater detail how these new invariants are related to the invariants of Donaldson. And Marino, Moore, and Peradze used the existence of N=2 superconformal fixed points to predict new results in the topology of four-manifolds. ...
... Later, Moore & Witten explained in greater detail how these new invariants are related to the invariants of Donaldson. And Marino, Moore, and Peradze used the existence of N=2 superconformal fixed points to predict new results in the topology of four-manifolds. ...
Perfectly accurate clocks turn out to be impossible
... dealing with very large accelerations, no clock will actually be able to show the real passage of time, known as “proper time”. The ideal clock is merely a convenient fiction, as theorists from the University of Warsaw (UW) and University of Nottingham (UN) have shown. In a study published in the jo ...
... dealing with very large accelerations, no clock will actually be able to show the real passage of time, known as “proper time”. The ideal clock is merely a convenient fiction, as theorists from the University of Warsaw (UW) and University of Nottingham (UN) have shown. In a study published in the jo ...
What is Time in Quantum Mechanics?
... 2. Event Enhanced Quantum Theory (EEQT): Time of Events True “geometrical quantization” must join two branches of mathematics: geometry and probability. While geometrical part is well developed, the probabilistic part is, till now, mostly neglected. Quantum theory is a theory of measurements, and m ...
... 2. Event Enhanced Quantum Theory (EEQT): Time of Events True “geometrical quantization” must join two branches of mathematics: geometry and probability. While geometrical part is well developed, the probabilistic part is, till now, mostly neglected. Quantum theory is a theory of measurements, and m ...
General relativity
... The history of Rayleigh–Jeans law: • June 1900, Rayleigh, applying the equipartition theorem to radiation, he obtained the result of C1ν2T . Only a limit law? Intro cutoff ρ = C1ν2T exp(-C2ν/T) • October–December 1900, The Planck spectrum distribution was discovered; ...
... The history of Rayleigh–Jeans law: • June 1900, Rayleigh, applying the equipartition theorem to radiation, he obtained the result of C1ν2T . Only a limit law? Intro cutoff ρ = C1ν2T exp(-C2ν/T) • October–December 1900, The Planck spectrum distribution was discovered; ...
PhD dissertation - Pierre
... The second part of my work consist in determine if the physics predictions that I computed from our theoretical framework can experimentally be tested with the ATLAS detector at the LHC ...
... The second part of my work consist in determine if the physics predictions that I computed from our theoretical framework can experimentally be tested with the ATLAS detector at the LHC ...
Quantum gravity
Quantum gravity (QG) is a field of theoretical physics that seeks to describe the force of gravity according to the principles of quantum mechanics.The current understanding of gravity is based on Albert Einstein's general theory of relativity, which is formulated within the framework of classical physics. On the other hand, the nongravitational forces are described within the framework of quantum mechanics, a radically different formalism for describing physical phenomena based on probability. The necessity of a quantum mechanical description of gravity follows from the fact that one cannot consistently couple a classical system to a quantum one.Although a quantum theory of gravity is needed in order to reconcile general relativity with the principles of quantum mechanics, difficulties arise when one attempts to apply the usual prescriptions of quantum field theory to the force of gravity. From a technical point of view, the problem is that the theory one gets in this way is not renormalizable and therefore cannot be used to make meaningful physical predictions. As a result, theorists have taken up more radical approaches to the problem of quantum gravity, the most popular approaches being string theory and loop quantum gravity. A recent development is the theory of causal fermion systems which gives quantum mechanics, general relativity, and quantum field theory as limiting cases.Strictly speaking, the aim of quantum gravity is only to describe the quantum behavior of the gravitational field and should not be confused with the objective of unifying all fundamental interactions into a single mathematical framework. While any substantial improvement into the present understanding of gravity would aid further work towards unification, study of quantum gravity is a field in it's own right with various branches having different approaches to unification. Although some quantum gravity theories, such as string theory, try to unify gravity with the other fundamental forces, others, such as loop quantum gravity, make no such attempt; instead, they make an effort to quantize the gravitational field while it is kept separate from the other forces. A theory of quantum gravity that is also a grand unification of all known interactions is sometimes referred to as a theory of everything (TOE).One of the difficulties of quantum gravity is that quantum gravitational effects are only expected to become apparent near the Planck scale, a scale far smaller in distance (equivalently, far larger in energy) than what is currently accessible at high energy particle accelerators. As a result, quantum gravity is a mainly theoretical enterprise, although there are speculations about how quantum gravity effects might be observed in existing experiments.